A very gay man . He is the king of the Gym . Very likely to own your very dicks . When MELVIN MEE winks at you your dicks is melvin's now.
by Rxdxy December 30, 2017

A Melvin is a teenager who is on that anime grind. They also have a despicable scent. They believe that they're the "main character."
by Ya.boi.gingy December 31, 2022

Gay idiot who loves anime men and girls. He spends most of his time watching My Hero Academia and watching more anime. He is a mega weeb.
Person 1: "Have you seen the new weeb weird kid? He's such Melvin Squigglebottom"
Person 2: "Yeah he probably is gay!"
Weeb: "UwU We have some sussy baka's"
Person 2: "Yeah he probably is gay!"
Weeb: "UwU We have some sussy baka's"
by Melvin Squigglebottom May 24, 2021

When a person playing poker decides to play cards that they should have folded all they way to the river and catches a "miracle card" to win the hand.
Person 1: Man, no matter what the bet Gary never folds his losing hands.
Person 2: yup, he waits for the river, total Midnight Melvin...
Person 2: yup, he waits for the river, total Midnight Melvin...
by 18cent June 12, 2017

by KutikiPlayz October 23, 2022

by Didgrueisiavdjddksh August 14, 2022

An insult used by traders and the investment community for whenever someone egregiously short-sells a stock/commodity/cryptocurrency to the point of insolvency.
"Hey did you see that huge 3000 BTC short at $12,500 get liquidated at $15,000?"
"Yea bro, what a Melvin, everybody knows that all bears die."
"Yea bro, what a Melvin, everybody knows that all bears die."
by HFSP January 26, 2021
