When you're watching a whole night of TV on the same network and you see the same ad roughly 9387493 times, you suffer from ad nausea.
Barbara suffered from ad nausea after seeing the same TV ad 98732438 times in one night.

Barbara: OMG! This is the 26th time I've seen this ad tonight!
Katy: You must be suffering from ad nausea.
or
Barbara: OMG! This is the 26th time I've seen this ad tonight!
Katy: Hmm you should see a doctor. That sounds like ad nausea.
by Euroame September 17, 2007
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