When one has smoked enough marijuana in a communal situation that they sit idly & forget they're holding the bowl rather than passing it to the next person. Similar to the term bogart, but in this case it's caused by being stoned enough to become forgetful rather than just being greedy or selfish; it also applies almost exclusively to bowls (& bongs) rather than to joints. Ironically, it typically takes the others in the room some time to realize someone is Lurching the bowl because they're all stoned enough to forget who's holding it too.
This term is not widely used, & has its origins in the Chicago suburbs in the late '80's.
Hey man, it's puff-puff-pass; quit Lurching the bowl!