When reading a boring piece of literature, such as a school Biology textbook or assigned reading book for English, you seem to lose track of time and begin reading the same sentence over and over again, while absorbing none of it.
Anthony: Hey Callum, how do you think you did on the Bio test?
Callum: I think I did pretty bad, I had major reader's block last night trying to cram for the test.
A group whore is someone who, during group projects in school joins one group only to leave it for another and then comes back and then leaves again while still pretending to be part of the original group.
Callum: Hey, can I join your group?
Callum: I'll be right back (goes to other group)
Lucas (in Anthony's Group): What's going on.
Callum: Ok, what's the answer to number 5?
Anthony: I'm not telling you!
Lucas: You're a group whore Callum!