Josephine's 5NT

If you bid 5 in major this is a Josephine bid asking for trump honors, if these things occur: - A major suit is agreed as trump & you bid 5 in the trump suit.  - Support partners major suit on the 5-level. One exception is if the 5 bidder has denied strength that can include 1 control in all  the other suits. The bid is then slam-try.