Shimmed

[Julian]

The act of having your [dates] fingers [put in] your ass while you are [hooking up]

[Dave Paprocki]

a small object or piece of material used between two parts of something to make them fit together, or to prevent them rubbing against each other:

[Ernesto]

Deceived by a mans appearance into thinking he is a she. To get [shimmed] or be shimmed is to check out what seems to be a hot chick but turns out to be some fuckin dude. She is in fact a him; hence, to be shimmed. [Transvestism] is not necessary for [shimming], which more often occurs in everyday situations with long-haired males, sometimes but not always driving in that Jag convertible up ahead in the next lane. To be shimmed is always painful, but is made most acute by grizzled facial hair and direct eye contact with the shim.