The art of sneaking out of a test in school to go to the "bathroom". While in the bathroom you use one hand to do bathroom things, such as piss. The other hand you use to check wikipedia. Hence the name wiki-piss. This strategy is commonly used by high school and junior high school students.
A wimpussy is someone who is a fusion of wimp and pussy, dont be fuckin gutted if you are one (you probably are) but take pride in it hold your head up high and go into the nearest supermarket and shout it as fast as you can over and over, then breathe out your nose and stick your tougue out, it makes you look like a dug
A trip to a grocery store, convenience store, or gas station for the sole purpose of buying an excessive amount of junk food and sugary drinks, usually with friends. A chud run often happens late at night and ends with everyone involved hating themselves afterwards.