Referring to a young girl who has begun to develop secondary sexual characteristics, ie: pubic hair, hence making her fair game for sexual intercourse, regardless of her age.
Man 1: Wow, check this girl out
Man 2: Your sick man, she seems 14
Man 1: You know what they say:
"..if there's grass on the pitch you can play.."
by Bob Sider August 17, 2006
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