Used in rural North Devon (South West England) to describe someones penis that is wider than is is long.
If you happen to be in this predicament - i.e. have a cheddar then your sex life is unlikely to be anything other than non existant
Clive - I heard that guys got a cheddar
Geoff - I know i saw it with my own eyes, i offered to give him a blow job, and to be fair it was pretty savage.
Clive - Yeah I can imagine, sounds fucked right up