A person who has a predisposition for causing accidents that ruin carpets, rugs and upholstery.
By lucky coincidence, the frantic tidying and commotion caused by the Loom Raider's upset often unearths items that have long since been thought lost. In student digs this will most commonly include lighters, money, weed/hash and other artifacts of (some) value.
Crash! Glug, glug, glug..
Loom Raider: "Oh, man. I'm so sorry. Why is it always me?"
Owner: "Because you're a klutz."
L.R.: "I'll help tidy up.. hmm.. what's this?"
Owner: "OMG! It's Emma's number! I thought I'd lost it! Haha! You're a Loom Raider! OK, you're off the hook.. I hope she hasn't forgotten me.. (etc.)"