Combination of loser and prutser.
Lutser - Lutsert - Lutserts
A site owned by www.geenstijl.nl, which is owned by the dutch newspaper the Telegraaf. Dumpert is used for people to upload funny video's and pictures. A lot of people on dumpert are huge fans of "camel toe's".
Person A: Hey did you see that epic fail on dumpert?
Person B: yeh that guy failed so hard!
Person C: what's dumpert?
Person A: gtfo you lutsert!