What is a nipple?

What the heck is it?

its where u load up the grease with the grease gun to oil mechanical parts.

really! Mr. Green

the tip of the iceberg

guess u dun haf them dats y u’re askinga very toopid question

dunno oso

Laughing

Right. Please refer to Wiki!

The one u sucked from your mother. Can't u remember??

It is ....... a malignant form of pimple lor! Laughing

Shocked Shocked Shocked Shocked

i've always wondered abt that myself.....

it’s a gland… just like sweat glands etc, it is its size for requirement.

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10 years old boy...

its a smaller cousin of apple. If you know what is apple, you will know what is nipple. Its just a smaller apple.