scrappy

adj

1. Consisting of scraps; fragmentary; lacking unity or consistency.

   “That was a scrappy lecture.”

2. (informal)Having an aggressive spirit; inclined to fight or strive.

   “He's a scrappy dog and will charge at you if you taunt him.”

   “In those days PGS [Portsmouth Grammar School] was full of sadistic staff and scrappy boys called things like Smudger, Muzz and Titch.”

   “The [Washington] Post's proprietor through those turbulent [Watergate] days, Katharine Graham, held a double place in Washington’s hierarchy: at once regal Georgetown hostess and scrappy newshound, ready to hold the establishment to account.”

3. (informal)(Of a fight) characterised by lots of ungainly or wild punches, grabs, wrestling, etc.
4. (informal)(Of a sports match) characterised by awkward or clumsy play.