as serious as cancer
something extremely serious, like cancer
Brittany: Hey! I just crashed my car into a ditch!
Joe: Are you serious??
Brittany: As serious as cancer!
Joe: Are you serious??
Brittany: As serious as cancer!
I'm as serious as dick cancer
The term "I'm as serious as dick cancer" is a response from one guy when asked by another guy if they are serious.
Person 1- Are you serious????
Person 2- I'm serious, bro! I'm as serious as dick cancer"!
Person 2- I'm serious, bro! I'm as serious as dick cancer"!