Definitions by Catfish:3

Yipe 

To show casual enjoyment in a casual way while having an obsoletely small amount of horniness or lust, first coined in the discord server of a streamer named "Shizu". Other forms of the word include "Yiped", "Yiping", and "Yiper", one who yipes.

Shizu : I got a new merch drop, look at these.
His fans : Yipe
Shizu : ( a direct quote ) wtf is Yipe? :WTFDisgust:

Yipe by Catfish:3 March 3, 2024