A very common way of affirming something. ¡De una! is basically used to express variations of the term “absolutely” – sounds good, alright, of course, go for it, yeah sure and so on.
Short for "D1 glazer' or "D1 dickrider".
Someone who excels in the art of "glazing", which is either giving excessive compliments or sometimes used as just talking about a particular person a lot, like having them on your mind and in your mouth 24/7.
D1 literally means division 1, a high division of sports for high level athletes.
In slang, usually used to emphasise how good someone is at something (which isnt necessarily positive), like a D1 Glazer or D1 Hater.