millimetre
The measurement penises (or 'peni') should be measured with so us guys can feel like our dicks are bigger (bigger numbers!). Also more accurate than inches so there.
Which sounds bigger?:
"I have a 6 inch dick!"
"I have a 64 millimetre dick!"
"I have a 6 inch dick!"
"I have a 64 millimetre dick!"
millimetre maggot
a really really really small dick
Harriet sucked Jak's millimetre maggot last night
millimetrically
Increasing in size or stature by the millimeter.
The pet snake increased in length millimetrically after it shed.