To laugh or chuckle in vexation.
From a prose adaptation of David Mamet's Glengarry Glen Ross:
"...how are you?" Ricky asked, finally noticing George's agitation.
"Fine. You mean the board...? How am I doing on the board?"
"Okay," Ricky said with a helpless gesture. "The board."
George gave a little malchortle. "I'm fucked on the board!"