Like the first definition mentions, it is a term used among those the paintball scene, however it is also used as an insult as well. Similar to the way "fag" or "homo" is so casually used.
Common saying in Los Angeles,CA as well as New York City,NY. Sometimes often heard in parts of Oregon as well as Texas. When a person utters this phrase, they refer to a women`s breasts and wants said woman to show, well...how those big tits fart. This can be said as an insult, but is most commonly expressed as a compliment.
Originally said by Tom Segura on the podcast "Your Moms House" or simply YMS.
Man:Hey girl. You got big ass titties. How about you show me how those big tits fart!!!
Woman:These big titties? Come closer boy so you can smell these titty farts!!!