bum chum

noun2

1. •
   (slang, offensive) A male homosexual's partner; a male homosexual.

   • ‘That’s his pal,’ Beeny said to Doreen. ¶ ‘Bum-chum more like,’ John added. — 1989
2. •
   (slang, offensive) A member of a group of sycophants; a social climber.

   • Rich isn't eating with us today: he's hanging out in the office with his bum chums.