A disorder marked by abnormal abdominal discharges from the ass and typically manifested by sudden, brief episodes of diminished sphincter control, involuntary flatulence, and sometimes severe anal explosions.
Tobin would be a great guy to date, but he does suffer from fartilepsy so be forewarned.
When, after releasing a cloud of farticles, you suddenly get up from your chair and walk across the room or office, trailing a cloud of farticulate matter behind you and contaminating the vicinity.
The resulting stench and theoretical stink particulate matter from a fart/flatulent episode. Etymology: slang based on the word "shrapnel", the primary connecting theme being the dangerous particles emitted by the event.
"Dude, you farted right next to me! I know you didn't aim it at me, but the fartnel is gonna be all over me!"