A Blackwood
In Bridge, a Blackwood is when you make a stupid bet to show off, and it’s just a fancy way of counting who has the most kings.
'I made a Blackwood bid and got roasted by my partner. I only had one ace.'
'Blackwood is just Bridge’s way of saying, 'I’m rich and I don’t care.'
'He did a Blackwood and then lost the game. Classic.'