Green’s Dictionary of Slang

1. to become bored.

2001

N. Griffiths Sheepshagger 167: C’mon, mun, drink up. Let’s move on. Sledgin a bit in yer I yam like.

2. to hit.

2009

T. Black Gutted 172: I saw the swing of his heavy right hook [...] I had my own at the ready , sledged him in the gut.