K. :)

You don't know what that is??, Well for starters, It's an easing out for a quick motion or a quick action done by an object or person, For example a person punches very slowly so the animator doesn't animate it with the said smear frames which blurs and idk the fist, But after the said person punches very quickly there goes the smear frames.

What is smear frame

! I got jumpscared for a second there, I'll try this out, I really like the smear frames you do