- The nocturnal, insectivorous, burrowing, mammal Orycteropus afer, of the order Tubulidentata, somewhat resembling a pig, common in some parts of sub-Saharan Africa. [First attested in the late 18th c.]
"The aardvark burrows in the ground and feeds mostly on termites, which it catches with its long, slimy tongue."
- (slang, particularly in the southeast US) A silly or credulous person who is prone to mistakes or blunders.
"I walked into the wrong bathroom like a total aardvark."