I find the CONCEPT of coitus ridiculous
and off-putting.
The Big Bang Theory Season 6, Episode 20
Do you understand
the CONCEPT of blackmail?
The Big Bang Theory Season 1, Episode 16
There's an economic CONCEPT
known as a "positional good"...
The Big Bang Theory Season 3, Episode 15
with the CONCEPT
that time is an illusion.
The Big Bang Theory Season 12, Episode 19
is an abstract CONCEPT...
Game of Thrones Season 1, Episode 6