Top Definition
crooked, jagged, or otherwise unattractive teeth, resembling the possible aftermath of stopping a slapshot with one's mouth.
"Julie's a cute looking girl, it's too bad she's got hockey mouth. She needs to fix that grill."
by Kell Hell October 19, 2006
1 more definition
An uncontrolable urge to spout profanity in as many languages that come to mind in a whole body expression of angst where you don't care who's in the room and people often ask to be warned if one starts foaming at the mouth.
Ryan's watching the game and has bad hockey mouth.
by Jamyz Ryan February 22, 2010

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