(used in the plural) trousers that end at or above the knee
"He pulled his rolled-up denim trunks down over his knees while standing on the diving board."
plural of trunk
"He swapped his jeans for a pair of compression trunks before stepping onto the basketball court."
shorts or briefs used especially for sports.
Third-person singular simple present indicative form of trunk
"The computer program trunks every call that doesn't match its routing rules."