tack down(redirected from tack them down)
To fix, fasten, or secure something (to some surface, especially the ground) with or as with tacks or small nails. A noun or pronoun can be used between "tack" and "down." Remember to tack the tarp down, or it will get blown away when the storm hits! I've been meaning to tack down this loose step before someone falls over it.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
tack something down
to fasten something down with small nails. Someone had better tack this carpet down. Please tack down this carpet.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.