When someone close/one of your friends is not being their usual self. Instead of being their usual self, they choose to be mardy, and kick off at anything said/done to them, this person is then said to be in Dick Mode.
Often occurs when someone is tired.
You: Haha! Nice coat ;)
Person: stfu n00b :|
You: Dick mode {insert name}! Dick mode!
(Dick mode is often followed by a hand gesture of turning a dial, representing turning the person on Dick mode)
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