If you would prefer to add a submarine sandwich then have sex with someone, they are a "sub". Slanderous term as you are insinuating that they are undesirable in comparison to eating food...
Conversely if you would rather have sex with them then they are a Way.
From the drunk persons game "Sub or Way" to describe how to judge people's appearence without them knowing what you really mean...
For Example : "Eww, look at that Sub!" or for the extremes "Sub of the Day!"
A sub sometimes imaginary that consists of a 12 foot long bun with just lettuce two meatballs on one far end and mayonnaise on the tip. Most of the time its extremely hard to carry.
Anus: Oh, hey yams nice sub, I think you lost some lettuce but that's okay because you got two meatballs on one end.
Yams: Yeah, well I try because this thing gets crazyheavy after awhile, Taylor also tripped on it.