derping out
when iryna fell on the floor and started laughing uncontrollably for absolutely no reason, ryan and matt mutually agreed that she was derping out
a verb to describe the action of somebody or something that is acting in a manor that would cause somebody to think that they are mentally handicapped
"when iryna fell on the floor and started laughing uncontrollably for absolutely no reason, ryan and matt mutually agreed that she was derping out" What is the definition of "derping out"?