1 (n): a small rodent, similar in shape to a squirrel, characterized by the black and white stripes on its back. Often seen on rock walls and, sometimes, playing games with cars in the middle of the road. Sometimes it loses. See pancake.
Woah, a chipmunk just scurried behind your back and went into that hole in the ground!
During a blowjob, a female may be able to deepthroat a man's cock. Truly experienced ladies can also engulf the balls into their mouth, causing them to have the appearance of a chipmunk storing nuts in the cheeks.
Lisa was deepthroating me last night and totally chipmunked my nuts.
Unhappy person in an antisocial mood, whose attitude is charecterized by the to desire to avoid social contacts in order to work on geek stuff, such as installing an Amiga emulator on his PC or play with a progamable calculator on a Friday night.
He's not coming with us because he's such a chipmunk.