1) The worst of two bad choices, though only slightly. 2) An alternative that is worse than the current, distasteful situation.
Bob: "I just got ugly Bertha to agree to go on a date."
Dave: "Great! That's better than a hobo blowjob."
Bob: "I guess so..."
"You can either stay here and watch this chick flick with me or go get a hobo blowjob."