A member which is a good deal smaller when flaccid than when erect, so that it is protected during combat with pirates, ninjas, anyone who might try to clock you in the cock. A grow-er, rather than a show-er, which remains at a more or less constant size.
Jenny: "Er, isn't it a little... small?"
George: "Oh yeah? Battle penis, extend!"
Jenny: "Why, it's the perfect defense against pirates!"
George: :awesome:
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The true battle between two guys. Two erected penises smash each other and try to make another penis eject and become flaccid first. The first penis becomes flaccid is the loser. The winner can steal his girlfriend.

Guys who good at penis battle as known as penis battler.
I want to steal your girlfriend! Let's penis battle!
by memefan May 21, 2018
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