When someone works a steady job with 2 consecutive days off that are not Saturday & Sunday, the last of the five work days is often refered to by them as "My Friday".
The last day of a work week or rotation. A poor excuse for lazy people to do nothing, leave early and still get paid. Generally used by people with no work ethic, no motivation, and no self worth.
An affectionate name for your female acquaintance when she is in a good mood. Referencing the day of the week, Friday, which is, by school children and business people, known as the start of a weekend; thus Friday would reference a start to something positive.