Sickening definition by Slang.net
This page explains what the slang term "Sickening" means. The definition, example, and related terms listed above have been written and compiled by the Slang.net team.
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Sickening is a slang term that describes something or someone as awesome or very cool. It comes from the idea that something can be so great that it makes you sick.
It is the same as the sick term, which is commonly used in sports to describe something as really cool. The term is most often used by teenagers and athletes.