To Squirrel
To disappear from a drinking event without anyone noticing, and then return to home.

The behavior is sometimes a response to shame from not being able to hang with the big boys and girls.

In some instances the behavior is the result of such a drunken level of stupor that the individual turns on his or her Lassie instincts and finds his or her way home like a K9.

To Squirrel

Mike: Where the fuck did Amir go?
General Consensus: I have no idea!
Mike: Damn it! Amir squirreled again!