1) Alternative to Mac or Buster 2) Any old Joe 3) Brah 4) Buddy 5) Buster 6) Buster or fella 7) Buster, mac or fella 8) Dude or chap relative 9) Exclusively Anglo word 10) Exclusively Saxon word 11) Familiar word of address 12) Fella 13) Frawley on My Three Sons 14) Insolent appellation 15) Kiddo 16) Mac alternative Found on https://www.crosswordclues.com/clue/bub
• (v. t.) To throw out in bubbles; to bubble. • (n.) A young brother; a little boy; -- a familiar term of address of a small boy. • (n.) Strong malt liquor. Found on http://thinkexist.com/dictionary/meaning/bub/