When an individual drinks too much Monster Energy Drink rendering him/her to a state of heightened energy. Typically signs include the shakes, premonitions, or jokes that when retold are followed up with, "well you had to be there."
I have had five monsters - I'm getting the Monsties!
ayon kay T-Lennie ika-10 ng Hunyo, 2009
Chuck smokes monsty, causes hes a fiend.
ayon kay MonstyMan ika-15 ng Mayo, 2016