This happens when you are wearing tight jeans while riding through a pasture (or off-road) in a truck. Next thing you know, you got a full on chubby because your jeans are rubbing on your penis. This is caused by the truck rocking back and forth due to the rough terrain.

On the ranch, when you don't want the bull in with the cows, you put the bull the field with the geese. "Goose pasture" is that place where the male has no opportunity with sexual relations with the opposite sex. The phrase is aptly applied to the the situation a young husband finds himself in during the last trimester of his wife's pregnancy.

In rural parts of the country, a party in a pasture where underage kids go to drink alcohol - usually high school rednecks.

An adult of the redneck or hillbilly type that would rather get drunk and live in a field than sober up and sleep in a bed

Another for golfing.

One who masters the art or grazing (an expert grazer); someone who sits at their desk and stares at the computer screen all day, smokes a pack of cigs and is a slug. Can also be someone who just does no work that day and is grazing the pastures...

When you go to a party that has a overwhelming amount of chunky/fatties and you want to describe the party or gathering to your friends.