The term 'low blow' is a phrase used to describe an unfair or unsportsmanlike attack. It can be used in both physical and verbal contexts. The crossword solutions for the term 'low blow' are TUBA (4 letters), FOUL (4 letters), and CHEAPSHOT (9 letters). TUBA is a large brass instrument, often used in marching bands. FOUL is a term used in sports to describe an illegal or unfair move. A cheapshot is a slang term for a low blow, usually referring to a physical attack.