Say if i told a joke for example... and it was funny the first time... and someone else kept bringing it up i would say .. dont kill it. or ... you jst killed it... as in you made the funny joke not funny. it taggs on to sentences like. funny guy... dont kill it .. thats most common . it doesnt have to be a joke it could be a special funny moment .
I cant think of any examples... but you should get it already ... if u dont.. just email me and ive put an example on definition kinda :) GOODAY MATE :p . just ignore this .... dont kill it