Top definition
The sound made by either gas or objects passing through the lower human orifices especially when lubricated either artificailly or naturally.
That fart was a plappy one.

Her vagina has a certain plappiness to it, especially when entered from the rear.

by bazpartu January 11, 2007
Get the mug
Get a plappy mug for your Uncle Paul.
3
Adjective; having a gel or gelatinous texture or consistency. Similar to elderflower jelly or excess skin.
"That dessert was a little bit plappy".
by LemsipMax June 17, 2012
Get the mug
Get a plappy mug for your brother-in-law Callisto.
4
relating to the Prison Legal Assistance Project (aka PLAP) at Harvard Law School, an unbelievably awesome organization dedicated to representing prison inmates in their disciplinary hearings and parole hearings.

Not to be confused with the other definitions of plappy.
Don't worry, be PLAPpy
Hey, are you going to PLAPpy hour tonight?
by plap-ster November 23, 2010
Get the mug
Get a PLAPpy mug for your Facebook friend Callisto.