an unemployed person that has a habit of dropping by without calling first
Phil always seems to bumdrop when it's dinner time! Every time we score some good weed, that David guy bumdrops!!
by Elle T & Daniel M (superdog) October 8, 2011
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The act of putting a narcotic pill up ones rectum.

Derives from suppositories used in the medical profession.

An act usually performed by bummers, themselves.
Dan did a double bumdrop with two E's last week.
by AndyM August 13, 2004
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