put hair on chest
put hair(s) on (one's) chest
To make one stronger or more masculine. Typically said of something very pungent or strong in taste. A: "These cough drops will clear you right up." B: "Yeah and put my hair on chest, too! Ugh!" Here, drink this up—it'll put hairs on your chest!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
put hair on someone's chest
Fig. to do or take something to invigorate or energize someone, always a male, except in jest. Here, have a drink of this stuff! It'll put hair on your chest. That stuff is powerful. It will really put hair on your chest.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.