Somewhere between TOOL using
and cave painting...
The Big Bang Theory Season 1, Episode 11
No, you're a TOOL I was using
to make my point.
The Big Bang Theory Season 6, Episode 18
Yeah, it's another fish
with a TOOL on its head.
The Big Bang Theory Season 6, Episode 2
A TOOL to ensure
their immortality.
Westworld Season 2, Episode 9
...and tried to build
a nuclear reactor in the TOOL shed.
The Big Bang Theory Season 8, Episode 23