A pleonasm is a redundant description. It is describing a word using adjectives that apply to it's inherent characteristics.
Person 1: Tim is a stupid idiot.

Person 2: As opposed to a smart idiot? You just used a pleonasm.
by PatrickRF February 6, 2008
Unusual ghostlike creature who frequents outhouses and continues to repeat the same word.
Jake heard the pleonasm through the half moon in the door, the night the comet struck.
by joyful noise August 29, 2003
the use of more words than those necessary to denote mere sense : redundancy
Instead of getting straight to the central idea, she used pleonasm because she thought more words made it better
by SonicLover8000 February 7, 2019