The Fight Before Christmas - S7-E11
Continuity mistake: Mel and Frasier are talking at the KACL Christmas party - she says "did you two have a good time last night?" and her hands are down in front of her - in the next shot her hand is up at her neck, with no time to have done this naturally.
Answer: In the last episode, they explained that Tossed Salad and Scrambled Eggs is a metaphor for the mixed-up people to whom Frasier dispenses his radio psychiatric advice.