as useless as tits on a bull Share definition Flag tits are not used on a bull because bulls do not produce milk. they are still there though. a person that cannot do their job properly may be referred to as= as useless as tits on a bull. as useless as tits on a bull by Tom Love February 2, 2007 0 0 Get merch Get the as useless as tits on a bull mug. Buy Now — $32.95 See more merch