Definition of double-teams:
(v) :
(transitive, sports) In sports involving offensive and defensive teams, to use two defensive players to guard against the movements of a single offensive player.
(v) :
(transitive, by extension) To deal with or handle a task or individual person by using a team of two people.
(v) :
(transitive, slang) To gang up on someone, as a group of two.
(v) :
(transitive, slang, of two people) To double penetrate someone.