That does it. I'm getting URANIUM.
The Big Bang Theory Season 4, Episode 18
...to buy URANIUM from an African warlord...
The Big Bang Theory Season 8, Episode 23
Tell her about the URANIUM!
The Big Bang Theory Season 8, Episode 23
...and then try to buy URANIUM...
The Big Bang Theory Season 4, Episode 18
because Santa wouldn't bring him
enriched URANIUM.
The Big Bang Theory Season 7, Episode 10