What is Grimey-ass Grin?
1.
A facial expression expressed by a man or woman who has been discovered recently engaging in an illicit or private activity, usually appearing delighted.
Jason woke up later in the afternoon, and saw his house mate and some young woman on the couch roused and mussed up with grimey-ass grins on their faces.
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1.
Some one or something that is being of severe annoyance or is being just plain gay; can be used as a subsitute for words such as "f..
1.
When you see a girl walk in the room and she has big tits.
That girl must be in the army, because she's got major booblage.
See b..
