A human being, generally male, with unlimited amounts of grease.
Can be used to describe a really greasy action.
Buddy 1: oh man I'm starving
Buddy 2: (just cooked a jacks frozen pizza) I need to hang a leak
Buddy 1: greases a couple slices of jacks
Buddy 2: (comes back from pissin) oh u greasy gary
Buddy 3: oh what a greasy gary

Example 2
Buddy 1 comes home from work and finds buddy 2 greasin a movie before church. Buddy 3 says oh you greasy gary, get to church
by Super Sal 3.0 November 24, 2018
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