Women's bodies are complex, to say the least. Half the time we aren't sure what the hell is going on with them, but men are doubly confused.

This lady decided to tweet an image of skin-coloured nipple covers to see the level of knowledge which male brains could handle, and it essentially broke them.

Twitter user @cxffeinated cheekily wrote; "Since men know everything. What are these?" and the responses were absolutely GAS.

Since men know everything. What are these? pic.twitter.com/ZqXD4U5QcA

— (@cxffeinated) January 5, 2019

The guesses which came in were so pure, so absurd, and so… wrong.

The silicone nipple covers were mistaken for things such as petri dishes from laboratories, wax melts in 'Caribbean Peach' flavour, and even FROG EGGS. (We died at that one)

It has definitely proven that men do not, in fact, know everything. 

According to my boyfriend: ‘It’s difficult to tell without some kind of scale….Are those frog eggs?’ 

— Steph Robertson (@stephjrobertson) January 9, 2019

Her boyfriend wanted to know the scientific scale, but he wasn't any closer to guessing correctly. Try again, lad.

Another wanted to ask if the nipple covers were actually a puncture repair kit.

Yes, that's a serious tweet. The poor fella is clueless;

Puncture repair kit?

— Elliot baxter (@ellbaxta) January 8, 2019

Some estimates were over-confident, some were highly unsure of themselves, and others were just plain baffled.

However, this one is definitely our favourite;

My man said mash potato

— (@staceydacosta) January 8, 2019

MASH POTATO. Let that sink in for a second. Wow.

We've got to give ten points to Gryffindor for their originality, at least. They've got their creativity if nothing else.

Better luck next time, boys.

Keep trying and failing to understand the complexities of the female body.