From Longman Dictionary of Contemporary Englishshirtfrontshirt‧front /ˈʃːtfrʌnt $ ˈʃɜːrt-/ noun [countable] DCCthe part of a shirt that covers your chest
Examples from the Corpus
shirtfront• Carey's face and his shirtfront were speckled with wine and glass; he was shaking.• Cardiff was clutching at his shirtfront with the other hand.• Grondine Carson wiped his hands on his shirtfront.• He loaded them into Carey's shirtfront, filling it like a sack.• Still holding the old man's shirtfront, Ellwood yanked him back to the couch and threw him full length. 