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1.
When a quarterback has a bad game
In last nights game, Drew Brees really pulled a grossman out there.
by ibanez926 September 07, 2007
 
2.
In American Football, the act of a Quarterback dropping back to pass, and then fumbling the ball away, particularly in an important situation.
My Niners would have won last week if only Alex Smith hadn't pulled a Grossman in the fourth quarter.
by RaDio3210 September 26, 2011
 
3.
Dry and scaling skin, typically caused by a cast being on for a long duration of time.
Paige has grossman.
by JACKSONJ March 05, 2010
 
4.
To be a total douche bag to your co-workers but a total suck up to your boss.
Dale is so grossman!
by enfluenza October 20, 2006