Today we venture into my daughter's world and come up with: LAME SAUCE. Not only can something be 'lame sauce', like going into a super-hyped movie only to come out bored and with a popcorn kernel stuck in your teeth, something can be 'lame sauce' in varying degree.
My 13-year-old illustrates the phrase this way:
"You know Mom. Like salsa. There's mild lame sauce, medium lame sauce, and it goes up from there."