It is a fart with a low but severe bounce frequency, preferably with a warmer and fuller sound than normal one.
Diesel fart makes my but cheeks bounce super crazy.
Da embarrassing (or hilarious, depending on who you talk to, and/or whether da emotions-feeler is da "actor" or da "observer") interval of "run-on" dat sometimes occurs following da "main event" --- i.e., yer butt-trumpet keeps on "purrin' like a kitten" for an extended period afterwards, rather than just "saying its piece" and then being done wif it.
In da uproarious "National Baked Bean Month" speech, da formally-dignified speaker experiences a major bout of fart dieseling towards da end, totally goofing up said oration but majorly putting his audience in stitches.
Da embarrassing (or hilarious, depending on who you talk to, and/or whether da emotions-feeler is da "actor" or da "observer") interval of "run-on" dat sometimes occurs following da "main event" --- i.e., yer butt-trumpet keeps on "purrin' like a kitten" for an extended period afterwards, rather than just "saying its piece" and then being done wif it.
In da uproarious "National Baked Bean Month" speech, da formally-dignified speaker experiences a major bout of fart dieseling towards da end, totally goofing up said oration but majorly putting his audience in stitches.