haymakerblow

noun
UK /ˈheɪmeɪkə bləʊ/
US /ˈheɪmeɪkər bloʊ/

A very big, wild punch that someone swings with all their strength.

The boxer dodged the haymakerblow and won the match.


OTHER MEANINGS

2. A heavy, clumsy hit that is easy to see coming.

He threw a haymakerblow that missed by a mile.

3. A powerful effort meant to finish a fight in one shot.

She wound up a haymakerblow and ended the round.

4. Any big, reckless strike in a heated argument or contest.

The debate ended with a verbal haymakerblow from the challenger.