You use a ruler, it's as simple as that. Or if you're lazy you could find a website that shows you how.
Use a dollar bill, or the toilet paper roll test
a ruler or hands and feet.
you can measure it
Not paying attention and thinking about taking a black penius up your butt
you take your clothes off. then put your penius in the hole...and start going back and forth... you take your clothes off. then put your penius in the hole...and start going back and forth...
How do they measure what?
120
Meters measure length, liters measure capacity, and kilograms measure weight.
your penius get or is to small :)
Because their penius attracts germs which can sometimes go through the penius and into the lungs which causes weasiness, which is the same as snoring.
In the 19th penius
penius
penius
it is called a penius
sick my dick
one penius,one dick,two pussies
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13 inches
yes because horses have huge a penius
penius