Clean your hands, my gang allies, in the water behind the weld.

Tack för det!

Thanks all for the comments! I was rather worried someone else would come up with a better "translation" while I was working on mine, but that didn't happen luckily. Incidentally, I get my quotes and proverbs from a variety of sources: some from the Oxford Dictionary of Quotations, and others from online proverb collections.

[rab] Thank you for reminding me of the Finnish for Merry Christmas and a Happy New Year. Finnish is truly opaque, and the only word in the phrase that has any relationship to other languages as far as I know is "Joulua", which is "Yule" with a nice Finnish suffix.

(Use a) nail for that!

Lapin Kulta

This phrase, decorously expressed in Latin, occurs in a Victorian anatomical guide to the fair sex written for young men (who are assumed virtuously innocent of such knowledge).

Costain Skanska Bafry

My cousin loves reggae and reggae loves him, baby.

Sein oder Nichtsein, das ist hier die Frage

Sigh over the night scene, because you're about to get mugged.

Theon oudeis popote tetheatai, ean agapomen allelous, ho theos en hemin menei kai he agape autou en emin teteleiomene estin.