Running so hard that you throw up during or immediately after a race. Also can be used to describe the "puke" that is ejected from the person and onto another runner.
He ran so hard during the cross countrymeet that he was ploofing nearly the whole time.
Pliffing is considered to be the most embarrassing forms of laughing. It involves laughing and pissing. The laugh starts abruptly before you have a chance to save it....you pee everywhere uncontrollably and for some unknown reason it is still funny. aka Dan Nicole
My friend made me laugh and I started pliffing my pants and continued to laugh like nothing even happened.