to peak means to find an extreme amount of amusement in something, "peaking" usually results in extreme laughter and joking around. If something is a "peak" it will usually be referred to and remembered as a good memory for a good amount of time after the "peak" has occured. This particular definition of peak also originated from the batting cages of northgate baseball's varsity feild.
"I peak at that kids jokes"
"I was peakin so hard when I saw my brother get hit in the head with a frisbee"
"What a peak"
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