1770 is when from the back, a girl looks like she is 17, but from the front she looks like an old biatch in need of a slap from a pregnant ox.
Whoa, Janet is 1770, i hope for your sake you use a paper bag...
Hook in is what you say to someone when they are talking to a girl. It's sort of self explanatory.
Joe: Sooooo Samantha, how are you?
Me: Hook in!! DATY biatch!
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