spit on
To refuse, decline, reject, disregard an item presented as a possible choice either currently or previously.
friend: Hey, they are hiring at the steel mill. It's manual labor but it is work.
you: Ah, not to spit on manual labor, but I have a college degree.
customer: Do you have anything else I could try?
rep: No, you already spit on everything within your budget that I showed you.
you: Ah, not to spit on manual labor, but I have a college degree.
customer: Do you have anything else I could try?
rep: No, you already spit on everything within your budget that I showed you.
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