Hello. Nice beard by the way! I checked my old seed catalogue, ThunderFuck was a cross of Matanuska Tundra x Sour Diesel. I remember when it first came out, it was very unstable, probably a F2 or F3 cross. In the years that followed the Tundra was changed to Thunder and it was stabilized. And with the strength of the sour diesel there was a fuck added. When you start seeds you don't get very many high test ones and this strain was the strongest and tastiest in that area. Example; Commerce City Kush, Tahoe Cookies, Florida Kush, Swazi Redbeard land race, Texada Timewarp. All were very poplar in their area, so the place was incorporated into the name. Probably a clone only strain, that was passed from person to person. Must be good to have it's own place name. Hope that answers some questions. Make some fem seeds. Chuck.