sack juggler 

a guy who wont stop playing with his sweaty sack. the juggle is often accompanied with a quick and subtle sniff of the hand. most often found on sporting fields and in pub toilets where the offender thinks it will go un-noticed.

i really dont like the new guy. he's disgusting. he's a world class sack juggler.

sack juggler by Porcelain Buddah December 5, 2007

Sack the juggler

A phrase commonly said in pubs in England when a customer or the person behind the bar drops a glass or a bottle, usually preceeded by a cheer by all who are in the pub

Come on, it's pretty obvious how you use it.
It literally says it above.

Sack the juggler

Sack the juggler by Proper Sheffield lad April 25, 2022