triple-team

Short definition from Wiktionary

Verb

1. 1
   In sports involving offensive and defensive teams, to use three defensive players to guard against the movements of a single offensive player.
2. 2
   To deal with or handle a task or individual person by using a team of three people.
3. 3
   To sexually penetrate someone simultaneously orally, anally, and vaginally.
4. 4
   To gang up on someone, as a group of three.