fourth point of contact

名词 n.

英文释义

名词 n.
  1. The ass (buttocks or anus). US,slang
    — "I don't know if it was because of me or because he'd finally pulled his head out of his fourth point of contact and realized, Hey, it's not really such a bad thing after all."

词形变化

fourth points of contact plural

词源

From military jargon: the fourth point of the body to make contact with the ground when correctly performing a parachute landing fall.
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