When you know you have an in with a girl; when you know your about to get yours, and it's just a matter of when and where, cause you already know shes down.
I have this girl texting me all the time wanting to hang out. I have an Ace on Base, all I have to do is tell her what time to come over or when to meet up.

He's got that girl hanging all over him, so you already know he's got an Ace on Base
by Brocrastinators May 5, 2011
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I fucking hard band from Sweden, that was hugely popular in the early 90's. Big Hits were the The Sign, Cruel Summer, etc. Still rocks out even today.
James: Damn boy, get the sign on, I wanna funk out to that shit.

Josh: Ye dawg, that shit is so addicting.
by P Style June 6, 2005
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When Someone (Andrew) is home or at a designated location (or) is in contol
1 Andrew arrives at party, "Ace on base"

2 "Bro where u at?" "Ace is on Base brohoob"

3 Don't worry Ace is on base
by Carodizzle May 10, 2010
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The set of relation ship bases for asexuals. (As in asexual relationships it can be a lot more romantic and emotional than a heterosexual or homosexual relationship and can take longer for intimate contact to occur or it will never happen at all)

1st base : holding hands

2nd base: hugging

3rd base : light kissing (cheek etc)

4th base : cuddling

5th base : French kissing
Girl 1 : oh my god! July went to 5th base with her girlfriend last night

Girl 2: yeah but it was ace bases
by Honeybea March 22, 2017
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