"between his buttocks"

Eh? The BBC report that:

"A man who stole cash and belongings from train passengers has been banned from entering London for two years.

Peter Abbott, 46, repeatedly boarded trains to take items from overhead racks, Southwark Crown Court was told.

When he was arrested in April, police discovered £280 in cash hidden between his buttocks.

...

He was stopped by police... when he was found with a wallet and credit cards taken from a man at Euston station, as well as the cash secreted in his pants."