n. Loud noise that is heard in horror situations that sounds as if someone is slamming there hands on the keys of a piano
by Sir Aaricus March 29, 2013

by Doobdalda September 26, 2006

by SmartassSF May 4, 2016

A foursome. Where as 'hitting a home run' means scoring with one chick, a grand slam means four runs so four chicks.
by matt January 5, 2004

the act of shitting in your hand and inserting said piece of faeces into the gaping mouth of a bystander, best served to a person you have a beef with.
by VenusFigure December 16, 2011

To perform the act of sex with a person as a sympathetic gesture, for reasons of either unattractiveness, or to break a plutonic relationship to make the other person feel better.
by Carlo Von Sexron the Third June 5, 2010
