lagergrinning 

That dumb smile you get when you drink too much beer.

Look at Jon over there, lagergrinning like a retard!

lagergrinning by TheDrunkenFool February 14, 2014

Lagergrenning 

To bake while wearing white underwear. The act is completed by posting a picture of it on the Internet.

I was Lagergrenning the other day when my clothes were dirty.

Lagergrenning by arloco December 9, 2012