(noun)
1. A sexual position in which one partner lies face-up while the other straddles their head, allowing their testicles to rest in the partner's mouth; they then ejaculate, showering the partner's breasts with cum.
(verb)
2. To give someone a teabag showering; to perform the act of straddling a partner's head, allowing one’s testicles to rest in their mouth before ejaculating onto their chest.
She laid back and invited him to give her a Teabag Shower.
He got into position to give her a good teabag showering.