usually on da top deck of da bus, a rude boi or chav or wateva u wana call him will cum up to you, usually from behind and slap you with his mates recording on camera fone. Some mug will shout 'KKKAAAAPPPPPOOOOOOOWWW' and then the victim wont kno what to do...Totally random but hilarious if your the one recording.
" Wa blo blad? You shud have seen it da ova day i happy slapped this dick head on the bus, was immense"
by TOP NEEK January 4, 2005

a video of someone videoing a run up of a random slap on someone
it is not raping punching stabbing shooting kicking or a beatdown
IT IS A SLAP TO THE FACE
dont let the media make you believe otherwise(we all know they exaggerate)
it is not raping punching stabbing shooting kicking or a beatdown
IT IS A SLAP TO THE FACE
dont let the media make you believe otherwise(we all know they exaggerate)
by thiswillbebigoneday February 9, 2009

when someone gets happy slapd its an unexpected crack and your mate films it on his phone. its usualy moshers as their a walkin target. you dont wana get slapd then dont draw attention to your self simple.
by kyle0161 January 9, 2007

term used to describe one's mood when sleep deprived or tired. Signs of being 'slap happy' include inane rambling, strange remarks, odd random behavior (such as giving oneself a wedgie), uncontrollable laughter at one's own jokes.
by ladeefalcn March 31, 2005

when you are extremely tired (like if you stay up 'till 1 or 2 in the morning) and everything makes you laugh
molly says "OMG!!! THERES A ZIT ON MY NOSE!!! AHH IM GUNA DIE!!!" David starts laughing histerically at that statement. David is "Slap Happy"
by CraZy aZN dUDe August 3, 2005

The state of being one may experience after abstaining from sleep for a long period of time. Could be described as being so sleepy that you feel hyper and alert.
by put it on December 23, 2009

by Phalkon October 31, 2004
