Indicates for how many successive days you can live on pasta (plain or with
something) without turning grumpy. Especially
important when
you are a poor student. If you are beyond your pasta tolerance treshold (PTT) you might want to switch to rice, polenta, potatoes etc. for a few days until you reach, for example, your rice tolerance treshold (RTT).
"Ey dude, pasta for dinner tonight?"
"No man, I'm really beyond my Pasta
Tolerance Treshold. I'm going for rice instead."
"Alright, I see what
you mean. Your PTT is
not to be messed with!"