a Donka is a tree growth in which the grain has grown in a deformed manner. It is commonly found in the form of a rounded outgrowth on a tree trunk or branch
Donka is a Swedish word for "Wanna come over?". So you would say "Ey lmao waddup dawgster, you wanna donka over later?". Or you can say it in Swenglish like this"Wanna donka över later?".
Huge, almost comicallyhuge penis. Only the manliest of men have this. A penis so large that would cause the destruction of anything it comes across. Word is used as praise and worship.