Answer:

knucklesandwich

AnswerCrossword Clue
KNUCKLESANDWICHStreet weapon, perhaps
KNUCKLESANDWICHPunch, in slang
KNUCKLESANDWICHIt's a punch in the mouth
KNUCKLESANDWICHA punch in the mouth
KNUCKLESANDWICHFist in the mouth, slangily
KNUCKLESANDWICHFist, so to speak
KNUCKLESANDWICHPunch, in slanguage
KNUCKLESANDWICHPunch in the kisser
KNUCKLESANDWICHPunch in the mouth
KNUCKLESANDWICHPunch in the mouth, slangily
KNUCKLESANDWICHBad thing to have for lunch
KNUCKLESANDWICHPainful thing to have for lunch
KNUCKLESANDWICHThreatening "meal"
KNUCKLESANDWICHFist