This is generally used with force, unless the victim is passed out.
Variation - Brown clown nose: If you want to go all-out, you can push a little and leave a lump of crap on the idiots nose. Resembling a fake clown nose.
but made out of crap.
man 1: "Hey buddy, that was one nice wet raccoon you gave the drunk guy last night!"
man 2: "He has yet to discover the shit-stain on his nose. And i feel much better about myself inside!"