A forceful release or insertion of air from a woman's nether regions.
Jim: Dude, I was totally going down on Brenda last weekend, and she gave me a huge windy tuna!
Mike: Aw man, that's gross did you give her one back?
Jim: Oh yeah, I took a huge breath and blew as hard as I could!
Mike: Siiickkk!!
To give your partner a hand-job, immediately after working on the farm.
Stacy: Hey Billy, you want a hand-job? I just finished cleaning the cow pen and I haven't washed my hands yet!
Billy: Oh yeah baby, you know I love a good feedlot cum-shot!
When forcefully and repeatedly thrust your penis into the tailpipe of an ex's car.
Garret: Hey man, did I tell you about that time that my ex cheated on me, so I gave her Honda Civic a Redneck Afterburner?!
Jack: Oh my god, that's hilarious, I did that to my ex after she gave me a windy tuna!
Garret: Oh dude, that's Savage!