1.) Your man. Or, your friend.

2.) Often times someone you "back" or "represent".
3.) This can also be you, referring to yourself in the 3rd person.

4.) This term can also be used in a derogatory sense, but in a sarcastic and often humorous way.
"Holler at Jerboi. He's the one bringing over the beers."

"I'm not sure Jerboi is handling his shit these days. I seen him maxing on some serious ho-ology at the bar last night"

"Jerboi is blowing it."

"Get at Jerboi, I told you I was feeling you already girl"
by typoscura April 18, 2010
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