>un tigre, dos tigres, tres tigres

This is a tongue-twister? Admittedly, I *cannot* say it fast, in that I
cannot say anything in Spanish fast, though the 'strest' of '~s tres tigres'
might present a problem.

Now: "better rubber baby buggy bumpers" sends you into lip-spasm.

Even better: Pope Sixtus VI's 6th sick-sex text's texture (this cannot be
said fast at all).
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