Often in correspondence with the names Chuck,Luck,Truck,Suck,Muck,Buck,Duck, and Yuck, A Wnuk is a person with limited mental capacity who can perform tasks and think only like a young child. In medical circles meaning a person who lacks the capacity to develop beyond the mental age of a normal five to seven-year-old child. Whenever someone says: "Dude,you're such a Wnuk"...It is most likely a sharp, painful remark towards your self esteem. How much wood could a woodchuck chuck, if a woodchuck could chuck wood? He wouldn't, because he's a damn Wnuk.
"Dude, you're such a Wnuk"
"Dude, maybe if you weren't such a Wnuk, maybe you could have chucked up some luck to dunk your duck into Daisy's cluck."