Something that cool guys don't look at.

To get very (nerdily) excited about a product, event, or person.

guys who you initially believe to be straight, but he turns out to be gay.

Similar to "Alright"; a term used to agree.

Similar to "brb" and other such acronyms, itnf stands for "in the near future"
It is a more formal way of saying, "soon".

except it's an acronym, so it's not actually that formal.