According to Wikipedia Captain_Pugwash

There is a persistent urban legend, repeated by the now-defunct UK newspaper the Sunday Correspondent, which ascribes sexually suggestive names – such as Master Bates, Seaman Staines, and Roger the Cabin Boy (meaning to have sex with) – to Captain Pugwash's characters, and indicating that the captain's name was a slang Australian term for oral sex. John Ryan successfully sued both the Sunday Correspondent and The Guardian newspapers in 1991 for printing this legend as fact.

The closest it gets is Master Mate and a sailor called Willy. It was Tom the Cabin Boy.