a person who is slightly brown and has a tendency of stealing t.v's. Hobbies generally include whale and/or shwamper hunting. Most people tend to clap when is in the general area as it a funny metaphor for his medical record.
He's definitely The Jon-a-thon
by TheSancho December 30, 2010
Get the The Jon-a-thonmug. When a Chinese dude asks you what math you're good at, so you slap him with semen and run away like Brus Lee.
by Dirty Burkhart April 14, 2025
Get the Jonmug. jon gilliam is the modern rambo. Ryan is his sidekick. He runs around naked in football cleats with his big maltball nipples, screaming, "Get off my shit!" In his crappy apartments with his fat ass mom who's got a bearded clam when she walks, "Squishy, Squishy."
by Tony Tuthill November 10, 2008
Get the Jon Gilliammug. The practice of an employee achieving nothing for long periods of time due to a terrible work ethic, whilst lying profusely to cover up one’s shortcomings, and generally bringing standards down in every regard.
I think the new air con “manager” has been on a Jon-athon since he arrived… I have no idea what he does other than turn up late, leave early and shirk his responsibilities.
by Renewables July 5, 2022
Get the Jon-Athonmug. 
by jon liam hater September 29, 2020
Get the jon liammug. Jon is a great person.He truly cares about you,he will never let you down and he will always try to make you feel happy when you pout.He will sometimes make fun of you but he will then try hes best to cheer you back up.Deep down in his heart he cares deeply and loves you unconditionally.Treasure him forever and dont take advantage of him because he will be hurt.Dont depend on him either.Be the best person you can to him and make sure not to affend him.He will love you no matter what,as friends or more.
by fire_fox553693 February 25, 2021
Get the Jonmug.