Having everything to with being
creepy, overly touchy, unwelcome in advances or presence,
may include, but is not limited to, those who are heavily intoxicated.
Probably derived from the use of lurky and
creepy combined, thus lur-py.
Many variations exist all with the same general implications. One can lurp, be a lurp, a lurpster, a lurp show, be lurpy, be lurptastic, or do something lurpily.
"That
guy was all over you on the dance
floor"
"Yeah he was really lurping on me"
" Who is that guy staring at everyone from the
corner?"
"I dunno he's really lurpy"