The act of sneaking up behind another person and proceeding to forcefully grab their junk. You must always yell the word "goinch" after you have successfully completed your goinch.
Ginchy morphed into boss, morphed into groovy, morphed into bad, rad, cool, bitchin', sick, etc. etc. (there are likely another hundred words). As Kookie said, "Baby, you're the ginchiest" the best.
The act of sneaking up behind another person and proceeding to forcefully grab their junk. You must always yell the word "goinch" after you have successfully completed your goinch.