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1.
Grude; Not being able to tell if someone is a Girl or a Dude so it is a Grude.
Hey Camron I can't tell if that is a Girl or a Dude.

Damn Mike it must be a Grude!
by Mr Shocker April 12, 2010
 
2.
Grude is when someone (a girl) puts icecream on her finger and then fingers herself afterwards she tells a guy to like it off. Which means he will be eating ice cream and eating ice cream at the same time.
Do you wanna lick my gurde?
by heather and julian November 22, 2004