ok i was watching ufc unleashed and saw a weird submission?

[Tony]

dont know the name of the fighters but the guy went for a guillotine to the floor the he got out and did something with his shoulder and the guys kneck but joe rogan said "this is some varition on the arm triangle " or something like that but the guy diddnt tap and blacked out the guy the winner said its wasnt luck its my signature move when they go for the guiltone i " thats when i cant rember what he said but nobody saw it coming and were surprised like hell when the blacked out the other guy if anyone out there knows what im talking about please tell me the name and extra ill give you best answer if you tell me how to do it