Semen, maybe (instead of seaman)???

"Mum's gorn down to meet the shrimp boats but dad's come home with crabs"

In all fairness to Sludge he could have been referring to 'seamen stains' i expect he knows that a couple of our posters are so highly sexed it could be a question of 'any port in a storm'

I read an article along the lines that these very macho blokes who always need sex with women are prone to beefing some bloke occasionally if a woman is not available. They can't help themselves, it's the sex drive. A bloke who doesn't live for sex never has homosexual experiences. Sludge seems one of the latter- no seaman stains on his sheets I'll warrant. Nowt wrong with proper homosexuals I should add.