A person is having a readathon when they are reading a book series from start to finish without reading other books in between or taking long breaks. In addition to book series readathons, one can also have author and genre readathons.
Example 2:
Chris - I think you are wrong, I think Cain is fast.
Ed - I didn't say Cain wasn't fast I said Silva was slow. What are you readtarded or something?
When someone or something has the characteristic of being Radical, Fantastic, and Delicious at the same time. It is to show how extremely awesome, cool, or pleasing someone or something is. This word can be used in a sexual way.
Regular Use
Person #1: Brooo, did you see that Lil Uzi Vert concert yesterday?
Person #2: Yeah man! That concert was Radatasticlicious on my momma!
Sexual Use
Person #1: Damnnnn gurl! You lookin Radatasticlicious! Can I tap that?
Person #2: Sure boy! You can tap it any time any day!