Here's a causal link for you

Alice in popular culture sighting no. 52: In episode 12 of the first series of The Big Bang Theory, after Raj, the third person he's tried to help with their research, tells him to go away, Sheldon mutters "curiouser and curiouser" as he's walking away from Raj's office.

A contradiction in terms

Alice in popular culture sighting no. 10: Interesting Times, the 17th Discworld novel, by Terry Pratchett, features this passage on page 36:

'Curiouser and curiouser', said the Senior Wrangler. [...] 'You must mean "curious and more curious", surely? And even then it doesn't make much sense-'

This is especially interesting as Pratchett has openly expressed his hatred of the Alice books...

Also interesting is the fact that "curiouser" is accepted by the Firefox dictionary. As are "wonderland", "chortle", "galumph" and "burble"...