A phrase often used by Twitter users to describe the blocking of another person, then immediate unblock. This is used to make the other user force-unfollow you without making it obvious that blocked them.

A stupid person; it refers to the lack of surface area on an individual's brain. The general thought is that the more surface area (wrinkles, creases, etc.) a brain has, the smarter the person is. Conversely, a person with a smooth brain (no wrinkles) has less surface area and would therefore be stupid.

when someone blocks you on twitter and unblocks you so you're not following each other anymore.

Similar to a cock block, its when you get turned off so hard by an event/s that it makes you revert to a soft state (penis wise)