Definition of slam:
(n) :
an act of
slamming; the shock and noise produced by slamming
"I don't mean this as a slam, but you can be really impatient sometimes."
(v) :
to shut with sudden force so as to produce a shock and noise; to put in or on a particular place with force and loud noise. (Often followed by a preposition such as down, against or into.)
"don't slam the door!"