Panchy

Panchy (パンチー Panchī) is the wife of Dr. Brief, the mother of Tights and Bulma, and the grandmother of Trunks and Bulla. In Dragon Ball Z: Kakarot, Panchy is instead referred to as Bikini In the original, Panchy has been shown to be a bit of a ditz despite her attractiveness and beauty. For example, she does not even know that Future Trunks is an older version of her grandson, Trunks, though it appears she learned in Super. However, in the Dragon Ball Z Kai version of the show, she is portrayed as slightly less ditzy in the dub, being more aware of situations and commenting from time to time based on the circumstances rather than having no clue of what's going on (yet, Gohan still comments that she is weird after dropping Bulma off during the Androids Saga). In addition, presumably because of her ditzy nature, she complimented Krillin's singing ability during a Karaoke session at a Hanabi picnic, despite his singing being lacking at best or downright terrible at worst, and is one of only two to do so (the other being an extremely drunk Master Roshi).