jitt bag
a dick, a douche, or someone who knows exactly what they shouldn't do, but does it anyway
"i've been hooking up with that girl from the sub shop."
"right on, definitely."
three days later....
"you hooked up with that girl from the sub shop? that was my girl, you jitt bag!"
"right on, definitely."
three days later....
"you hooked up with that girl from the sub shop? that was my girl, you jitt bag!"