My absolute favourite of all time (more of a spanner than a knobhead, really) ...
20 years ago, I went to see Northampton v Carlisle with a Cobblers mate. We sat directly behind a bloke in his 60s, who had a tatty plastic HMV bag in which he carried his wallet, keys and flask. He spent 90 minutes shouting two things (only). It went like this:
"USE YER SKILL !" (excited)
[5-10 second pause]
"USELESS BAAASTARDS !" (disgusted)
[5-10 second pause]
"USE YER SKILL !" (excited)
[5 to 10 second pause]
"USELESS BAAASTARDS !" (disgusted)
[5 to 10 second pause]
"USE YER SKILL !" (excited)
... and so on, for the whole match. By the end it had a kind of strange hypnotic quality all of its own, like the different melodies you can hear in a fire alarm after its been ringing 20 minutes, or some very weird krautrock, or something
Greenwich Blade might play on his radio show
"Useless baaastards" has been part of my daily vocabulary ever since. It's particularly useful at work, and has seen off a few managers and players at the Lane (useless baastards).