The unsatisfying day at the end of the week when people on a diet are compelled to ditch their dissipative junk-food routine and only eat flavor-impaired less-filling low-calorie health foods. Can be especially distressing after the previous 24-hour period, Fryday, which is the one glorious day of the week when they are allowed to indulge in all their debauched gluttonous chowing down of rich greasy salty deep-fried delights.
Wife #1: What's with your husband today? He hath that lean and hungry look.

Wife #2: Oh, it's nothing, really, dear... he's just feeling the classic β€œSadderday syndrome” after stuffing his face with burgers and fries all day yesterday.
by QuacksO December 29, 2013
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