Chipmunk Effect is a term used to describe the moment just before you ejaculate and a completely random thought runs through your head. This term came to use after discussing that moment in question and Christopher Scurr of Whitehaven, Cumbria said:
Oh, you mean like when you're proper going for it and then you're like 'AHH CHIPMUNKS!'
Hence, Chipmunk Effect
When your girl teabags your ballsack and pushes your nuts into her cheeks, looking like a stuffedchipmunk, then proceeds to nibble on your sack with her rodent-like buckteeth.
Damn that girl left a scar when she angry chipmunked me last night.
Three cute little chipmunks with really squeaky voices who sing for a living and are raised by David Seville, who acts as their father. The ringleader, Alvin, always enjoys annoying everyone around him.
I really love the Alvin and the Chipmunks song "Alvin for President". It's so funny, and he could do a better job than Bush.
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!