The nocturnal, insectivorous, burrowing, mammal Orycteropus afer, of the order Tubulidentata, somewhat resembling a pig, common in some parts of sub-Saharan Africa.
The aardvark burrows in the ground and feeds mostly on termites, which it catches with its long, slimy tongue.
A silly or credulous person who is prone to mistakes or blunders.
I walked into the wrong bathroom like a total aardvark.