1. A giant beast that lives in a lake with his mother in the epic poem Beowulf 2. A giant beast that lives in the pants of a male human (if you catch my drift)
Go suck on a grendel!
Dude, he has a nine inch grendel.
a name for an obscenely ugly female. Spawning from the mythical beast in the book Beowulf, the name represents a large/fat/ugly/hairy or just generally disgusting display of womanliness
Dude, look at that Grendel!
Yeah, I wouldn't want to get in a fight with her, she'd kick my ass!