Well, it wasn't spray-painting
a LIGHTNING bolt
The Big Bang Theory Season 5, Episode 3
He merely used a kite to determine
that LIGHTNING consists of electricity.
The Big Bang Theory Season 3, Episode 6
Not with Lightning McQueen here.
The Big Bang Theory Season 9, Episode 19
I thought we were
the Lightning Sharks.
The Big Bang Theory Season 7, Episode 3
♪ One plays with LIGHTNING
The Big Bang Theory Season 12, Episode 24