Smashing a beer can on one's forehead when extremely intoxicated.
Bro check this gash on my forehead, I must have frommeled last night
by erwin frommel December 10, 2009
The act of shaking up a beer can until it's highly pressurized, then smashing it against one's forehead until some part of the can begins to spray beer, cracking open the tab then chugging the remaining beer.
Dude, he got so hammered he went outside and frommeled his whole case!
by France_Is_Bacon May 08, 2011