Ocksters

n.

The underarms, generally used to describe hairy wans dat haves a bad humm offa dem.

In use

Did ye get de humm offa yer man's ocksters when he was doin' de burdy dance boy!

Let Lawrence Muck translate it to posh English for you
Lawrence Muck

Hello, my dear. Do take a seat. Would you like me to translate 'Ocksters' in use for you?

Did you catch the dreadful odour from that gentleman's armpits while he was doing the birdie dance?