/fiks"it/ , Informal.
1. a person who characteristically repairs or tinkers with things, as household appliances (sometimes used with Miss, Ms., or Mrs. instead of Mr. when referring to a female).
2. a person who epitomizes the ability or tendency to manage situations or solve problems (sometimes used with Miss, Ms., or Mrs. instead of Mr. when referring to a female).
[ 1920-25; from v. phrase fix it ]