Teabag refers to the obscene action of squatting on the head of an enemy who can't afford to fall to the ground. Children should not learn, but there are always a group of players who are keen on it.
More common in multiplayer FPS, action or fighting games. In Watching Pioneer, Anna has a special skill of tea bag: hypnotic darts. The hit player will fall to the ground and sleep, and Zzzzz will jump out of his head. This action is teabag.
Official restoration of teabag behavior
After the upgrade of Watching Pioneer, all the people who fall asleep by Ana hypnotized darts will keep the collision volume, and other players can't coincide with their positions, so the "teabag" action can't be done. Of course, players can still "tea bag" the body, but the body stays on the ground for a short time.