fly kipping 

falling asleep on a bus or other public transportation when coming back from a long day of work or a party.

It is common place for bus and train drivers in England to wakeup passengers who nod off after a long day's work. fly kipping has become a rising trend.

fly kipping by yoova November 11, 2006

Flytipping 

(Verb)
Flytipping is a drunken activity that male humans wearing jeans participate in when the party atmosphere reaches the slow decline that happens after it peaks where one or more people have passed out and the rest are substantially drunk. Said males who are especially drunk and most likely randy will proceed to open and 'empty' the 'contents' of their zipfly onto the face of a person lying passed out on the floor. The lower orders also tend to call it dickslapping. This activity rarely turns sexual and in fact can be seen as rather irritating especially for those victims who are unlucky enough to be attacked by one who has recently been to pee and not wiped themselves clean. Most likely to occur when party is at said atmospheric condition and a game of spin the bottle is occuring.

Person 1: Dude what smells of pi..? OH MAN DID SOME FUCKER GO FLYTIPPING LAST NIGHT?
Person 2: Fuck I don't know I just remember being fucked off my head and randy as fuck

Flytipping by coit105 September 9, 2010