It is short term for the word Douche Bag. Douche bag meaning a person who like an actual douche bag takes dirty vaginal secretion. Also implying this person sucks, is stupid. It's a basicinsult.
Ron is a d'bag! Stan is a D'bag! Yer face is a d'bag. or simply D'bag
-sound that the penis makes while loosing erection during sex
*Honey is your penis loinching again?It's only been 25 seconds!
-a fuzzy fruit eaten with camel spit
*Have you ever tried a loinchy?