a massive nigga sandwich is a sandwich an individual can buy for less than $10 that is literally the size of a human baby. (not to be confused with a big nigga sandwich though.)
An insecure man who relies on a girl too much and emotionally traps her. Usually threatens her with suicide if she has thoughts of leaving him. Claims he has anxiety when they are separated. In Realitythe man just has no qualities that make women want to stay so he must pretend to be all vulnerable.
Can also be abbreviated as just sandwich
Girl 1: "Cmon let's goparty"
Girl 2: "I'm sorry Ruben is such a sandwich nigga he says he gets anxious when I'm out partying"
Guy 1: "Yeah, I told her if she leaves me I'll kill myself so then she's forced to stay with me"
When you fail at something in life (eg. failing an exam or not getting a job), go home and spend an hour just standing in the shower, propping yourself up against the wall with your eyes on your feet.
Caleb knew the only thing to do after he didnt get prefect was take a failure shower.