别闹交出荧光棒v
[bié nào jiāo chū yíng guāng bàng v]
'V' usually symbolizes Victory (胜利) here but in modern popular context it means Verification. As whole, the net name means stop joking/messing up, hand over the lightstick which is used by fans in concerts for supporting the artist, like in K-Pop or any other live music events.