What is Is It In Yet??
1.
Term used to indicate a small penis size, so small that the woman can not feel it in her vagina.
Man: "Who's your daddy!"
Woman: "Is it in yet?"
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2.
Possibly the worst sentence you can expect to hear from your sexual partner - save from "Surprise! I have AIDS!".
"Ok, is it in yet?"
"Yes but I wish it was in a meat grinder now, just to block out the mental pain."
See