pot hound

pot hound

1. Any dog trained by law enforcement to detect drugs, especially marijuana, by smell. I broke out in a cold sweat when I saw them bring the pot hounds onto the bus. There's no way I'm smuggling dope through the airport—that place is crawling with pot hounds!
2. Any stray, mixed-breed dog; a mutt. A slang term specific to the islands of the West Indies, especially Grenada. Our family befriended a pot hound that kept sniffing around our garbage, eventually adopting the rascally thing as our own. This part of the island is positively crawling with pot hounds.
See also: hound, pot
Farlex Dictionary of Idioms.

pot hound

and pot sniffer
n. a dog trained to sniff out cannabis. (Drugs.) The pot hound at the airport is always busy finding marijuana. A cute beagle named sparky greeted me as today’s “pot sniffer” in the baggage claim area.
See also: hound, pot
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • sniffer
  • sniffers
  • pot sniffer
  • sweat (something) out of (one)
  • sweat out of
  • sweat something out
  • sweat like a pig
  • greefo
  • griefo
  • smelt