noun. a short or shortened tail of certain animals.
adjective. having a short or shortened tail.
noun. large sheepdog with a profuse shaggy bluish-grey-and-white coat and short tail; believed to trace back to the Roman occupation of Britain.
1. Noun, singular or mass If sign-up is not free, get recommendations from other bobtail drivers who use the board before you pay the fee to join. 2. Adjective Bobtail insurance is only in effect while an owner/operator of a tractor-trailer rig is operating the bobtail truck on personal time.