To fail a drug test or piss test. Drug tests are usually given by either a probation officer or a parent/guardian. The test requires for you to urinate in some sort of container, while afterwards your urine is tested for illegal substances. If you test positive for any illegal substances, you just dropped dirty.
by Miss Kristin July 17, 2006
 Get the Drop dirtymug.
Get the Drop dirtymug. by Joe Schaefer August 6, 2005
 Get the dropping dirtiesmug.
Get the dropping dirtiesmug. by charlie muphy August 23, 2009
 Get the drop dirtiesmug.
Get the drop dirtiesmug. by bayrhino January 24, 2010
 Get the drop a dirtymug.
Get the drop a dirtymug. Don't bother taking a shower before The Dirty Drop plays, you're just going to be filthy afterwards anyways...
by the ketchup August 2, 2008
 Get the The Dirty Dropmug.
Get the The Dirty Dropmug. by Anonymous May 15, 2004
 Get the dirty dropmug.
Get the dirty dropmug. Serial position in which a penis-haver lies recumbent and holds his erect membrum virilis pointing upwards. The partner, having eaten a vindaloo the precious night, squats about the erect "gherkin" and drops the drty bomb.
by ORANGEHAMSTER ALAN ORLA May 17, 2023
 Get the Drop a dirty bomb on the gherkinmug.
Get the Drop a dirty bomb on the gherkinmug.