DEFINITION: “I’ll pass” = I’ll (or I will) decline an opportunity or offer to do something because either 1) I don’t feel like doing this particular action or 2) it’s not worthy to do this particular action
NOTE: This is another, less polite, way to see “No, thank you.” You would usually say this to a casual question (not a formal invitation to dinner, for example; that would sound impolite).
ORIGIN: From card playing terminology
A: Would you like to have some pizza? We have some leftovers from last night’s event.
B:. “No thanks, I’ll pass.”
A: Do you want to come and watch the basketball game with us tonight?
B: Nah, I think I’ll pass this time. I’m pretty tired. Thanks though!