peaking 

When you're at the height of tripping or doing something stupid.

Sam: My Spanish professor started peaking halfway through the lecture.
Dustin; What he do?
Sam: He was speaking in Chinese dude..

peaking by équerre May 14, 2022

Nipple peaking 

When your nipples harden.

Friend 1: "Man, your nipples are hard, what should we call that?"

Friend 2: "We should call that nipple peaking".

Nipple peaking by Daddy Penguin July 1, 2016

Mission Peaking 

Twerkin' whilst hiking up Mission Peak in Freakmont California. A tried and true way to help close all activity rings on the Apple Watch.

Tha to Miki: "Damn Gurl! Look at Cef Mission Peaking up there on the side of the hill!"
Cef: "Oh yeah! Oh yeah! Look at me! Twerk! Twerk! Twerk! Where's my Happy Lemon H5???"
Miki: "I like turtles."
Kim: "WTF"

Mission Peaking by Kibbles 'n Bits February 21, 2019