Meaning : An eater who dips food into a liquid before eating it.
Example :
He was a dunker--he couldn't eat a doughnut without a cup of coffee to dunk it in.
Meaning : A basketball player who is able to make dunk shots.
Dunker ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Marathi. Dunker ka matlab kya hota hai?