Jakers is used in Ireland as a euphemism for Jesus, to avoid taking his name in vain. See also: Janey Mac and James's Street (both euphemisms for Jesus Christ).
The feeling of guilt one feels after a good ole jerkin session. Still not completey understood why many men expirience this issue.
After Clevon got done burping the worm after a long days work he climaxed and felt a great deal of jerkers remorse strike him but it only lasted a few seconds cause he started fappin like nothing happened.
This term was originated by the singer of Baltimore metal band Rest Among Ruins.
Mike: "Dude, are you blazin jeaners later?"
Garrett: "Of course dude! How else would I blaze vajeeners!?"
or
Mike: "Dude, are you blazin jeaners later?"
Some Jabroni: "Nah man, I think I'm just sportin my Towson hoodie. Maybe some other time when I'm not a Jabroni."