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1.
A cute endearing pet name/nickname for a best friend or girlfriend.
Heather: Hi Chickmunk, I really miss you. Let's get together.
Shannon: I'd love that, Darlin. Why don't we do lunch?
by tangelaf April 12, 2008
 
2.
A term of endearment when addressing a best friend or girlfriend. A nickname or pet name for a female friend.
Shannon: Hi Chickmunk. I miss you, let's get together soon.
Heather: I'd love that, Darlin. Why don't we do lunch tomorrow?
by tangelaf April 13, 2008