What is Im Grin?
1.
The tell-tale grin one gets while IM-ing at work or in class. This grin tends to incriminate the IM-er and lets others know that they aren't staying on task or paying attention.
"OMG, LMFAO. Stop it - I've got the worst IM grin and my boss just walked by"
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While having sex with a girl in the doggie style position with hands on her hips, one would slide thumb into girl's asshole and at ..
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An often small and rather persistent (read: annoying) wasp that flourishes in the summer months and is easily recognized by the yellow p..
