The word "sharty mcpants" also known as: "sharty mcpanties" means a person who sharts a lot.

Some people use "Sharty McPants, Sharty McPanties" as a word to tease somebody, It can also be used as an insult to somebody use dislike.
Yuck! You're a sharty mcpants/sharty mcpanties!
by chelxi May 28, 2021
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