When a dick/dildo/object reaches as far as it can in the area/hole/whatever they're penetrating.

When your having sex, And you go as deep as you can go untill her body touches down to your lower abdomen. This making a slapping noise.

To "bottom out" is when one is having sex and the penis reaches the cervix, or the top part of the vagina, and can go no deeper. This can be referred to as "bottoming out," or in the past tense as "bottomed out."

It can be either painful or pleasurable, depending on the girl and how extreme the bottoming out is.

1. When the penis or other intrument used in a vagina, hits the back wall and can not go in any furthur.
2. To reach an end or back of the vagina.

(verb)
The act of entering a vagina whose depth is too shallow to accomodate the penis, thus resulting in said penis hitting the cervix. This, "bottoming out", results in much uncomfortability in the receiving woman.

Verb. The action of a penis exceeding the maxim depth of said-bottom, usually results in a pelvic organ prolapse.

1. To reach the lowest possible price

2. To reach the lowest limit