push

push  [from the operation that puts the current information
   on a stack, and the fact that procedure return addresses are saved
   on a stack] (Also PUSH /push/ or PUSHJ /push'J/, the latter
   based on the PDP-10 procedure call instruction.) 1. To put
   something onto a {stack} or {pdl}.  If one says that
   something has been pushed onto one's stack, it means that the
   Damoclean list of things hanging over ones's head has grown longer
   and heavier yet.  This may also imply that one will deal with it
   *before* other pending items; otherwise one might say that the
   thing was `added to my queue'.  2. vi. To enter upon a
   digression, to save the current discussion for later.  Antonym of
   {pop}; see also {stack}, {pdl}.