Grungle

The "smurf" of StL Yik Yak – an absurd multipurpose word often commented to dismiss or outright ignore the OP's sentiment.

OP: "My girlfriend just broke up with me. Life has no meaning."
Donut: "Grungle grungle"
Ambulance: "There are other grungles in the sea, OP"
Soda: "Reject meaning. Embrace grungle"