Collopy Muckles
A new poker term for you:
Muckle; verb - to muck one's hand and chuckle to oneself while doing so.
This is exactly what Jim Collopy did when he called a 100,000 bet from Ram Vaswani on the river of an board, only to muck to Vaswani's for quads.
Vaswani, who was already slightly in the lead before the hand, increased to 1,165,000. The muckling Collopy slipped to 755,000.