Accelerating at an initial rate
of 32 feet PER second.
The Big Bang Theory Season 1, Episode 2
Four-point-one-eight-five-five times 10
to the seventh ergs PER calorie.
The Big Bang Theory Season 1, Episode 13
...between the number of chirps PER
minute and the ambient temPERature.
The Big Bang Theory Season 3, Episode 2
Six toes PER foot
or six toes total?
The Big Bang Theory Season 12, Episode 20
And the policeman says, "Did you know
you were going 85 miles PER hour?"
The Big Bang Theory Season 10, Episode 21