Answer:
A feeble attempt at spelling "lowest", as in the prices they offer at Lowe's...
Well that's dumb. I mean I doubt many people got that. It's not that feeble it is spelled right. Did they even use the word lowest in the add to make you understand?!?
Why wouldn't people get it? L-o-w-e-s-t is a common word.
Dumb is spelling ad with two D's.