When you're banging a chick and you stick your thumb up her butt and immediately wipe your dirty thumb across her forehead while saying 'Simba' like Rafiki did in the beginning of The Lion King.
The Simba is done by completing the following steps:
1. Guy cums on girls face (must get some on forehead...it is essential)
2. Guy reaches out and smears the cum across said girls forehead while saying SIIIIIIMMMMMMBBBBBAAAAAA in a long, drawn out manner.
As you can easily tell this is a favorite of many, many girls...especially those girls known as cum sluts, chicken heads, etc.
(Bonus points if you dress in a Rafiki costume while doing this.)
Kim and George were having sex in the bathroom stall when George thought it would be funny to pull the Simba.
V. the act of smearing a bodily fluid upon the forehead of someone else and saying slowly "Simba" as Rafiki did to the image of Simba on his Tree in the Lion King.
from texsfromlastnight.com
"(519): and then she said I drew a line on her forehead with my cum and whispered "Simba" "
I totally simba-ed Victoria last night. It was priceless.
