Oscar! Breakfast! Grab your socks (Odd Couple Question)

[iturntoyou]

I was reading the website Jumptheshark and this was written:

This show couldn’t possibly jump the shark; it was the funniest and most-quotable show of all time. I thought surely someone would have posted this line, another one that remarkably got by the censors: Felix, summoning Oscar in the morning: “Oscar! Breakfast! Grab your socks!” You might have to be an Army veteran to get it, but it’s one of the dirtiest lines the writers ever got away with. Ask a vet to explain.

OK can someone explain this?

[cher3]

A traditional wake-up call:

“Drop your c-cks and grab your socks.”