A boner that occurs when rubbing loation on someone's back.
how does he not get a boaner when rubbing the loation on her back
Slightly devious way to spell "boner" (erection, stiffie). The pronunciation of "boaner" is the same as "boner" and means the same, but it enables online posters of certain ask-question-get-answer websites to slip the word past an unaccomodatingly severe censor bot.
A borrowed car is a Loaner,
A bad pun is a Groaner,
A woman who's loud in bed is a Moaner,
But a raging erection is a Boaner.