doubler n.2
an extremely severe blow.
![[UK]](/static/img/flags/uk.png "United Kingdom") | Fancy I, 255: In the fourth round he came in all abroad, and got a doubler in the bread-basket, which spoiled him for the remainder of the fight [F&H]. | |
![[US]](/static/img/flags/us.png "United States") | Vocabulum 126: doubler. A blow which causes the person struck to bend forward. |