
Really more to organize,
you're not actually dirty, PER se.
The Big Bang Theory Season 1, Episode 2

That's 4.9 Penny Blossoms PER hour.
The Big Bang Theory Season 2, Episode 18

of 4.6 yoctometers
PER femtosecond.
The Big Bang Theory Season 5, Episode 18

Four-point-one-eight-five-five times 10
to the seventh ergs PER calorie.
The Big Bang Theory Season 1, Episode 13

He was so busy figuring out
how many parts PER million of urine...
The Big Bang Theory Season 8, Episode 9