Someone who shows the qualities of a jackass and also a mother fucker. This person also has many twat qualities. When seen traveling with other jackfucks they are usually referred to as a flock of jackfucks.
it's like being checked into the boards in hockey except not on ice and wearing regular shoes
My buddy is always playing tricks on me when we are drunk. Last night I came up behind him and jackfucked him into a parked car.
It's a Jackass but you are too mad that you cant remember the "ass" part of the jack, so you say "fuck" because you can remember that word!
Kyle is such a jackfuck this morning!