Who better to list out funny words than Sheldon Cooper himself? Big Bang Theory star Jim Parsons visited Jimmy Kimmel Live! on Wednesday where he helped the host with a special segment.
WATCH: EXCLUSIVE: Jim Parsons Says 'Young Sheldon' Star Iain Armitage Is 'Inspirational to Watch'
First, Kimmel noted that British researchers had declared the word "booty" to be the funniest word in the English language. The show's crew then went out onto the streets of Los Angeles going up to random people and saying, "Booty."
The word didn't elicit many laughs, so Kimmel decided to come up with his own list of funny words.
Parsons came out on the stage to help the host read off the words, such as, "Canoodle, cockpit, bigly, Uranus, nuts, Cumberbatch, wenis, and Reince Priebus.
But Parsons got to say the final word, which just happened to be his BBT catchphrase, "Bazinga!"
Later in the show, the 44-year-old actor opened up about the 11 seasons of the hit CBS comedy.
"Like this show's going to end at some point and I'm going to be like 'I can't wear this anymore! I am an old man!'" he quipped of the series.
He also talked about the spin-off series, Young Sheldon, where Iain Armitage is playing a younger version of Parson's signature role.
MORE: Will 'Young Sheldon' Have a 'Big Bang' Crossover? Plus, Why a Family Tragedy Won't Be a Big Mystery
"Yeah [we have] an unlikely bond," Parsons said of his mini-me. "I didn't think I was very good with kids, but I'm fine with them, if they're smart and talented."
To see the dynamic duo in action, watch ET's exclusive interview with Parsons and Armitage below!