Toronto Raptors fans got straight-up PERSONAL when taunting Tristan Thompson during Tuesday night’s playoff game … with hundreds of people in the arena shouting, “KHLOE!!!”

The fans tried to do their part in messing with Tristan’s head … and began chanting the name of his baby mama whom he famously cheated on with multiple women.

But somehow, Tristan was able to tune out the haters … and hit ALL FOUR of his shots from the line. The Cavs ended up winning the game in overtime.