Sacrilegious Boi (Ben Lee) plays at 15 wrong notes per second. Ben Lee wants to break a world record on a violin, but he uses a 'thing' to play, not a wooden violin.
ben: if you can play it slowly you can play it quickly
eddy and brett: no u sacrilegious boi
This is an expression used to denote something that is irrelevant, useless or unfit for purpose. If you wanted to say someone was stupid, you could say “Her head is as empty as a eunuch’s ball sack.” If you wanted to say someone was useless, “He’s as much use as a eunuch’s ball sack.” Cowardly “If courage was balls you’d be a eunuch’s ball sack.” The expression is versatile and can be adapted to a wide variety of purposes.