The act of slapping a person with the palm, straight on, in center of the forehead, with fingers up, and then pulling the open hand straight down in line with the face. The person will be confused and feel like a bitch.
by Ace8904 January 30, 2008

When a bitch slap just isn't good enough...Everyone loves ponies, therefore, this type of slap is even more offensive and is best used when the situation leading to the slap is irrational, recurring, or just plain incomprehensible.
by VTVaJayJay October 16, 2008

laughing in such an uncontrollable way that if your friend was to slap you in the face it wouldnt phase you. also, if one becomes "slap happy" it is extremely difficult for those surrounding him to control their laughter.
1. when john wasnt looking, i took a drink of his cup and when he finally noticed 10 minutes later, i became slap happy.
2. hey rich, i'm fucking slap happy. (rich in turn becomes slap happy)
2. hey rich, i'm fucking slap happy. (rich in turn becomes slap happy)
by porpoise September 27, 2005

Coming from old war movies wherein the American Soldier is being interrogated by the Chinks... basically as the American soldier starts to say something he is backhanded... This repeats until he emotionally breaks down...This word also comes to mind when i think about some of the stuff jessica simpson says... The other thing that comes to mind when i think about Jessica is hot steamy sex.
Jap:"ÄÄÀïÊÇ·¢ÉäÎ"
American Soldier : "Sho- *SLAP*"...
Jap:"ÄÄÀïÊÇ·¢ÉäÎ"
American Soldier : "Sho- *SLAP*"...
etc etc
American Soldier : "Sho- *SLAP*"...
Jap:"ÄÄÀïÊÇ·¢ÉäÎ"
American Soldier : "Sho- *SLAP*"...
etc etc
by Jap Slap June 25, 2004

by JasonStillwell February 4, 2003

by yo mama and yo sista June 6, 2005
