ELI5: Explain Like I'm 5

Pin-up model

A pin-up model is someone who poses for pictures that people put up on their walls. These pictures usually show women wearing old-fashioned clothing and sometimes not wearing very many clothes at all.

The models who pose for these pictures have a special look about them. They usually have curly hair, bright red lipstick, and big smiles on their faces. They also wear clothes that make them look like they're from a different time, a long time ago.

Pin-up models were very popular a long time ago, in the 1950s and 1960s. People used to buy magazines that had lots of pictures of pin-up models in them. They would cut out these pictures and put them up on their bedroom walls, just like posters.

Nowadays, not as many people are interested in pin-up models. But some people still like to collect the old magazines and pictures, and they think that the models are very pretty. Some people even dress up like pin-up models for special events, like Halloween or costume parties.