A loud, distinct single "POP!" sound during an upshift.
Cars that have this are one that are performance oriented with GMs 10 speed hydramatic like the Camaro, Corvette and CT4/5 V and V Blackwing, Genesis g70 and more.
Cars with upshift "farts," such as those using DSG, dual-clutch, ZF, etc., do not count.
Wow, Greg, did you hear that Teusz Shift?
While accelerating hard, Thug shifted his Camaro all the way to fifth gear, with each shift making a loud, distinct Teusz Shift sound."
Dang, Santos, did you hear those Teusz Shifts?
I love the Teusz Shifts in my Cadillac V Series.