A binding vow made between close mates, thou shall not shave until coitus-completus (the deed is done).

Usually conducted as a bet between mates on a dry spell. Can also be used as motivation for mates hung up on an ex to move on.
Someone - What’s with the dirty mo’s?

The boys (simultaneously)- “We are bound by the vow of Post-Coitus-Shavus

Someone- Why doesn’t Johnny have one ?

Johnny- *smirks smuckishly*
by tommystips December 17, 2019
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A long raving party that last till dawn, drinks drug and sex all night
Jarred- 'Hey Selena you coming to the shavue this Friday'
by Analboufe February 18, 2017
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