The best friend you will ever have.
"I spent all day with my cow , in a field, alone"
1: A Animal that makes milk
2: Very fat person
1: My Dad's *Cow* makes white milk
2: My Girlfriend is a *Cow*
Crush of the week. One of the many meanings for this acronym.
Billy: This girl at my summer camp is so cute, but she lives in another state so I’ll only see her for the week.
Jeremy: So she’s your COW?
Billy: Yeah, she’s my COW.