QUICK ANSWER
"Teta" is a form of "teta", a noun which is often translated as "boob". "Culo" is a noun which is often translated as "butt". Learn more about the difference between "teta" and "culo" below.
la teta(
teh
-
tah
)A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
1. (colloquial) (anatomy)
A word or phrase that is commonly used in conversational speech (e.g., skinny, grandma).
a. boob (colloquial)
A word or phrase that is commonly used in conversational speech (e.g., skinny, grandma).
Este vestido me hace unas tetas enormes.This dress makes my boobs look huge.
c. breast
Lo normal es que las tetas te aumenten de tamaño durante el embarazo.Breasts usually increase in size during pregnancy.
el culo(
koo
-
loh
)A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
1. (colloquial) (anatomy)
A word or phrase that is commonly used in conversational speech (e.g., skinny, grandma).
a. butt (colloquial) (United States)
A word or phrase that is commonly used in conversational speech (e.g., skinny, grandma).
Regionalism used in the United States
¡Ay! Estaba sentado en la hierba y ahora tengo el culo todo mojado.Oh man! I was sitting on the grass, and now my butt's all wet.
b. bum (colloquial) (United Kingdom)
A word or phrase that is commonly used in conversational speech (e.g., skinny, grandma).
Regionalism used in the United Kingdom
Con el culo que tengo, no hay manera de que me meta en esos vaqueros.There's no way I'm getting into those jeans with my bum.
d. backside (colloquial)
A word or phrase that is commonly used in conversational speech (e.g., skinny, grandma).
No prestaba atención y se cayó de culo.He wasn't paying attention, and he fell on his backside.
e. ass (vulgar) (United States)
A word or phrase that is crude, indecent, and generally rejected by society.
Regionalism used in the United States
El camarero le dio una patada en el culo y lo echó del bar.The bartender gave him a kick in the ass and threw him out of the bar.
f. arse (vulgar) (United Kingdom)
A word or phrase that is crude, indecent, and generally rejected by society.
Regionalism used in the United Kingdom
No tenemos todo el día. ¡Mueve el culo!We haven't got all day. Move your arse!
g. asshole (vulgar) (United States)
A word or phrase that is crude, indecent, and generally rejected by society.
Regionalism used in the United States
Cuando se dobló, se le cayeron los pantalones y, literalmente, se le veía el culo.When he bent over, his pants fell down, and you could literally see his asshole.
h. arsehole (vulgar) (United Kingdom)
A word or phrase that is crude, indecent, and generally rejected by society.
Regionalism used in the United Kingdom
Estaba tan enfadada que su cara se puso tan morada como el culo de un babuino.She was so mad, her face turned as purple as a baboon's arsehole.
a. bottom
Me llevé una sorpresa cuando al terminar mi refresco, vi una mosca en el culo del vaso.I had quite a shock when I finished my soda and saw a fly at the bottom of the glass.