A girl who is always available to have sex. From the Gutta Boys song "Now or Laters": "I want them Now or Laters, them Now or Laters, that's them girls that'll give it to you now or later."
"Don't trip on that girl, she's a now or later, she'll be ready when you are."
ayon kay SWATgirl ika-06 ng Enero, 2008
1 more definition
is when the boy gets the girl in the mood and they both hot and ready but when the boy inserts his penis and strokes for a couple of SECONDS his penis goes back on soft and the girl gets mad and walk away
man that was shit i could have fucked somebody that can stick and stay with your now or later dick
ayon kay diamonddbbyha ika-28 ng Hunyo, 2010