THESAURUS
flock together
accompany, assemble, associate, associate with, assort with, attend, band together, bunch, bunch up, chum, chum together, chum with, clique, clique with, clot, club together, cluster, collect, combine, come together, companion, confederate, congregate, consociate, consort with, converge, copulate, couple, couple with, crowd, date, fellowship, flow together, forgather, fraternize, fuse, gang around, gang up, gather, gather around, go along with, go with, hang around with, hang out with, herd together, hive, hobnob with, horde, huddle, join, join in fellowship, keep company with, league, link, mass, meet, merge, mill, mingle with, mix with, muster, pal, pal up with, pal with, rally, rally around, rendezvous, run in couples, run with, seethe, sort with, stream, surge, swarm, take up with, throng, tie up with, unite, wait on