What is the meaning of Teabag?

A cloth or paper sachet containing tea leaves or herbal tea, designed to act as an infuser when submerged in hot water.

To lower one's scrotum into the mouth of another person, or onto the face or head of another person.

To sit or crouch repeatedly on the head of another player's character after they are dead.

To have enough lift to repeatedly lift the kite-flyer slightly off the ground, then back down, then back up, etc., in the manner of dunking a teabag into water.

Source: wiktionary.org