
That's because it's BARBECUE.
The Big Bang Theory Season 12, Episode 20

...BARBECUE sauce,
bacon and cheese on the side.
The Big Bang Theory Season 2, Episode 7

...on the BARBECUE and eat it
until we're all obese.
The Big Bang Theory Season 6, Episode 6

we had a BARBECUE.
The Big Bang Theory Season 7, Episode 22

...BARBECUE bacon cheeseburger, BARBECUE
sauce, bacon and cheese on the side.
The Big Bang Theory Season 2, Episode 7