A funny graphic design, with three pictorall sections and header text.

The header text says "Sorry, I'm booked all weekend."

The left image says "Friday" and has a picture of a knife in a circle graphic, above a picture of Jason from the "Friday the thirteenth" horror movies, wearing his iconic hockey mask. This refers to this Friday (today) being Friday the 13th.

The centre image says "Saturday" and has the same picture of a knife in a circle, above a picture of a steaming hot pie. This refers to Saturday (tomorrow) being "Pi Day" (the mathematical constant ~3.14... that is the ratio of a circle's circumference to its diametre), March 14th, or 3/14.

The right image says "Sunday" and has the same picture of a knife in a circle graphic, above a picture of a person dressed up to look like an Ancient Roman Emporer. This is supposed to represent Julius Caesar. Sunday is March 15, or "the Ides of March", halfway through March, and celebrated in some parts of the Internet as a commemoration of the stabbing to death of Julius Caesar by many Roman senators.
A funny graphic design, with three pictorall sections and header text. The header text says "Sorry, I'm booked all weekend." The left image says "Friday" and has a picture of a knife in a circle graphic, above a picture of Jason from the "Friday the thirteenth" horror movies, wearing his iconic hockey mask. This refers to this Friday (today) being Friday the 13th. The centre image says "Saturday" and has the same picture of a knife in a circle, above a picture of a steaming hot pie. This refers to Saturday (tomorrow) being "Pi Day" (the mathematical constant ~3.14... that is the ratio of a circle's circumference to its diametre), March 14th, or 3/14. The right image says "Sunday" and has the same picture of a knife in a circle graphic, above a picture of a person dressed up to look like an Ancient Roman Emporer. This is supposed to represent Julius Caesar. Sunday is March 15, or "the Ides of March", halfway through March, and celebrated in some parts of the Internet as a commemoration of the stabbing to death of Julius Caesar by many Roman senators.