While not, strictly speaking a great Flash game, it wins for strangest we've seen for a bit: apparently you're some sort of Swiss milkgirl / aid worker / bukkake freak out in the Serengeti, and your mission here is to milk the teats of a mother giraffe into the maw of a rotating baby giraffe, without getting the milk into the path of a monkey in a UFO who wants the milk for his tea. Manage this, and for some reason bombs come into the picture. Probably safer than huffing paint and it carries a vital message about giraffes, alien monkeys, and/or bukkake.

Giraffe Milking [matazone]
Via in4mador