The act of physically stopping someone in their tracks by running into them, in the same manner of them running into a tree. Common in sports.
I tree-checked this guy off his feet at practice today.

by a bananarchist October 27, 2008
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the act of jumping out of a tree and kicking someone in the face.
"That guy just got tree checked!"
by FAILMANninja February 22, 2010
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