The word "Beef" is used in a derogatory context to describe someone as "fat" or so big they are comparitive to cattle.
The word "Gremlin" is associated with a mythical and ugly creature.
When paired together, a "Beef Gremlin" is used to describe somebody who is a fat unpleasant creature.
EXAMPLE 1)

" I got so drunk last night I ended up going home with a beef gremlin"

EXAMPLE 2)

I need to go to the gym to get a summer body, I don't wanna be the beef gremlin on the beach.
by MeNzi June 8, 2015
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