> Also, old norse insults, no matter how vulger, rude or so on, I

would be interested to know a few such terms, as I am unsure how the
old norse would have even insulted their enemies, on what
characteristics they considered insulting etc. Any guidance on either
of these queries would be most appreciative.


There a quite a lot of these, use them wisely!

fífl - idiot
eldhúsfífl - a simpleton who sits by the fire all the time and isn't
good for anything

dunga, dugga - useless/worthless person, coward
hraumi - braggart, wretch
gløggvingr, hnøggvingr - stingy person
slápr - lazy person, a boor
vámr - loathsome person
vargdropi - son of an outlaw
pútusonr, pútubarn - whoreson, child of a whore
fúll merarsonr - foul son of a mare
veslingr - poor/puny wretch
níðingr - descipacble person
hvers manns níðingr - someone (rightly) dispised by all

And so on... Many of the themes of Old Norse insults will be familar
to English speakers, e.g. scatology: skítkarl "shit-(old)man",
taðskegglingar "dung-beards." And sexual insults, although the exact
form of these can sometimes get a bit bizarre. Grágás (Old Icelandic)
lists certain insulting words which should not be used of a man on
pain of outlawry: ragr "cowardly, effeminate", stroðinn, sorðinn
"buggered." The Norwegian Gulaþing Law-Code describes insults which
seem to be a joking elabouration on the latter idea, saying that a man
has given birth to children or comparing him to a bitch (grey) whore
(portkona) or any female animal.

http://www.fordham.edu/halsall/pwh/gayvik.html

Words meaning "bitch" (bikkja, grey) also appear in the Icelandic
sagas, applied insultingly to a male or a female. I haven't found any
insulting Old Norse examples of another word with the same meaning,
'tík', but perhaps could was used in the same way; it was borrowed
into English as 'tike', 'tyke'. Likewise other female animals, e.g.
gylta "sow". People might also be insultingly likened to a male dog
'hundr'.

Other Icelandic sources, sagas and poems, also suggest that
allegations of cowardice and of being sodomised were used to insult
men, and allegations of promiscuity for women. In some cases, men are
alleged to be sodomised by supernatural beings, cf. the famous example
in Njáls saga Ch. 123 (this particular example is in response to other
less direct implications of unmanliness, e.g. Njáll is called 'karl
hinn skegglausi' "the bearless old man"). For more supernatural
buggery, see Richard Perkins' article "The Gateway to Trondheim: Two
Icelanders at Agdanes" in Saga-Book 25/3, 2000 [
http://www.viking-society.group.shef.ac.uk/ ].

Trolls come into basic curses: Tröll hafi þitt hól "Trolls take your
boasting!"; Tröll hafi þína vini "Trolls take your friends".

On the other hand, the medieval laws of the Baltic island of Gotland
proscribed a more prosaic set of insults, for men: thief (þiaufr),
murderer (morþingi), robber (raufari), casna vargr (arsonist), and for
women: thief (þiaufr), morþingi (murderer), hordombr (adulterer),
witch (fordeþsciepr), casnavargr (arsonist).

You might find it useful to read the Eddic poem Lokasenna in which
Loki insults the gods and goddesses in turn [
http://www.normanniireiks.org/guilds_lore/lore/poetic/lokasenna.htm ].
And it's worth looking at Helgakviða Hundingsbana inn fyrri [
http://www.normanniireiks.org/guilds_lore/lore/poetic/helgakvida2.htm
] for further colourful insults.

Skáldskaparmál ch. 65 contains words for "men", many terms of praise,
but also a list of insulting words. Besides the extreme insults
mentioned above, the sources contain plenty of more general terms with
dictionary definitions such as: useless, cowardly, worthless, vile,
loathsome, stupid, wretched, wicked person, etc.

One final curiosity, the possessive adjective is used in name-calling:
hundrinn þinn! "you dog" (literally "your dog" or "the dog of you");
ok kvað enga dáð í bikkjum þeim "and said there was no courage in
those bitches" (literally "their bitches"); Böðvarr bað bikkjuna hans
þegja "Bodvar told him to shut up you bitch" (lit. "bade the bitch of
him to be quiet").

Now, try not to get into any duels...