Pissing yourself
To completely embarass yourself by making stupid mistakes which you shouldn't be doing in the first place.
Example:
Mike: What happened!?
John: I accidentally gave the ball away to the opponent,sorry for that
Mike: Come on! Stop pissing yourself!
Mike: What happened!?
John: I accidentally gave the ball away to the opponent,sorry for that
Mike: Come on! Stop pissing yourself!