verb The act of waiting until your wife, girlfriend or friend with benefits is asleep, then tipping her over so you can get some booty.
by westwardHo April 28, 2019
I'll be back in 5, I've got to jam a grumpy.
by Erock April 19, 2004
by Mdcf January 12, 2010
by bobthechez January 13, 2019
Uniquely perverse act, known only to readers of The Hater, that is always performed with a British accent.
After getting bored with the Donkey Punch, it was time for all of Amelie's friends to give the Grumpy Saddle a go.
by Still Not Quite Right July 12, 2008
Who's a grumpy bear this morning?
by mh8748 October 18, 2010
Yo, i'm squating a grumpy.
by mattyohomygunit October 03, 2006