snag vs swap out

snag

verb
  • To obtain or pick up. 

  • To damage or sink (a vessel) by collision; said of a tree or branch fixed to the bottom of a navigable body of water and partially submerged or rising to just beneath the surface. 

  • To cut the snags or branches from, as the stem of a tree; to hew roughly. 

  • To fish by means of dragging a large hook or hooks on a line, intending to impale the body (rather than the mouth) of the target. 

  • To catch or tear (e.g. fabric) upon a rough surface or projection. 

noun
  • A stump or base of a branch that has been lopped off; a short branch, or a sharp or rough branch. 

  • A sausage. 

  • A tooth projecting beyond the others; a broken or decayed tooth. 

  • A goal. 

  • A misnaged, an opponent to Chassidic Judaism (more likely modern, for cultural reasons). 

  • A problem or difficulty with something. 

  • A dead tree that remains standing. 

  • A tree, or a branch of a tree, fixed in the bottom of a river or other navigable water, and rising nearly or quite to the surface, by which boats are sometimes pierced and sunk. 

  • Any sharp protuberant part of an object, which may catch, scratch, or tear other objects brought into contact with it. 

  • A pulled thread or yarn, as in cloth. 

  • One of the secondary branches of an antler. 

swap out

verb
  • To exchange (something) for (something else). (usually followed by with or for) 

  • To transfer (memory contents) into a swap file. 

  • To exchange (something or someone) for an unused (or less-used) equivalent. 

noun
  • Anything that is swapped out for another; an exchange. 

  • A pre-prepared food item used in place of an unfinished food item in order to cut down the overall preparation time during filming. 

How often have the words snag and swap out occurred in a corpus of books? (source: Google Ngram Viewer )