german root word "lund" meaning turd and "er" referring to the space between the scrotum and anus (also called the gooch)
Modern meaning combines the two to form a person who is ferociously dirty, obsessed with sports, and has abnormally small genitals.
Possible suffixes include -fanny -butt -gut -stench and most importantly -pit
"Yo cuz! Me and Andre was snackin on our fried chicken and grape soda this morning and we spotted this lunder comin out of the shower"
"Quit rubbing your duck butter on my towel you filthy lunder!"
Degenerate losing sports bettor who borrows money from co-workers and doesn't pay them back, takes out car title loans, and writes bad checks to chase his losses. He only plays big public favorites and square parlays. He likes to gamble and post on gambling forums while on family vacation. When you see a Brock Landers "Rubberband Play", pound the opposite side with confidence.
During the use of a bucket bong or a lung/parachute bong; draw a super thick milky smoke from an excessively over packed cone of cannabis then inhale causing your lungs to bust and cough.
Someone who is doing something unspectacular. Someone who is reading too much into everyday statements. It can also refer to someone who is known to sleep frequently and without warning.