Thomas, who also body-checked Henrik Sedin to the ice in Game 3, said he was tired of Burrows and other Canucks going after the butt end of his stick all night long.
"They did it a couple of times on the power play in the first period also," said Thomas. "I don't know who it was, I was focused on the puck. That was like the third time that he had hit my butt end on that power play. We were up 4-0, the game was getting down toward the end, so I thought I'd give him a little love tap and let him know, 'I know what you're doing, but I'm not going to let you do it forever.' So that's all that was. It was a typical battle."
Burrows was not available after the game to comment.
"We were on the [penalty kill] ... and [Burrows] came too close for Timmy's feeling or judgment, so he kind of whacked him in the back of the calves and Burrows turned around and went after him," Bruins defenseman Dennis Seidenberg said.
Canucks coach Alain Vigneault shrugged it off.
"That's hockey," he said during his French media availability.
Burrows was at the center of controversy earlier in the series. Bruins forward Patrice Bergeron accused him of biting his left index finger during Game 1 of the Cup finals. Burrows denied biting Bergeron and the league did not suspend Burrows, saying it found "no conclusive evidence that Alex Burrows intentionally bit the finger of Patrice Bergeron."