Some Tapeworms may pass through to the stool and exit the body. If this happens while sodomizing, Brown Spaghetti is the act of your partner picking out the worm as it makes its way to freedom and then ingests it into his/her own body through the mouth as an act of true love.
Jason: 'Me and my wife are so in love, She isn't even bothered knowing that i have Tapeworms. In fact, She did Brown Spaghetti last night.'
Kimberly: 'You know that freak Craig actually did a Brown Spaghetti last night'
Jermaine: 'Yo Dawg, that's true love right there.'