Exploding Helicopter Quotient
Back in the old days, before the show was running on BBC Radio 5 Live, Mark and Simon were together on BBC Radio 1.
Around the time that the original Mission Impossible movie came out (May 1996 if its IMDb page serves me correctly), Dr Kermode coined a new phrase to express his (lack of) appreciation for films of this genre.
The phrase "Exploding Helicopter Quotient" was brought into the common lexicon of pre-Wittertainment as a way of indicating where on the extreme silliness scale a movie was, without resorting to the tired old tabloid mechanism of assigning stars.
And this was before Transformers, Avengers, The Expendables, Taken, etc.