An individual, male or female, who is honest, straight up, trust worthy, and dependable. A person of such characteristics, or smiliar ones, will never make you question their dependability and will never leave you in doubt. A solid mfer are good business partners.
by ALWAYSFAB June 25, 2017
Get the Solid mfmug. Noah: No cock blocking tonight you guys!
Luke: Fuck that! If one of us picks up a bitch we are all fucking her!
Josh: Oh yeah! We are running a MFS train on that bitch!
Luke: Mother Fucking Slut Train!
Luke: Fuck that! If one of us picks up a bitch we are all fucking her!
Josh: Oh yeah! We are running a MFS train on that bitch!
Luke: Mother Fucking Slut Train!
by Boris98 April 20, 2018
Get the MFS Trainmug. by @sipmadety August 4, 2019
Get the Perc mfmug. by Isaiah Hart February 6, 2021
Get the fortnite mfmug. 

