taking a number 3
A causal way of explaining what you are were doing to your self after being caught masturbating.
Son you just walked in on your old man taking a number 3, it's perfectly natural.
Take a number 3
To masturabate, jerkoff, or rub one out. The action of releasing a load of nut juice.
Damn boys it's been fun but it's getting late and I really gotta take a number 3.
A number one is to piss a number 2 is to shit so a number 3 must be....... To bust a nut
A number one is to piss a number 2 is to shit so a number 3 must be....... To bust a nut