Regardless of which two terms you think are being smooshed together to make “bussy,” either way, it’s a reference to a man’s anus, or hole, that is often but not exclusively used to make the term seem more sexual, or at least more of a hole for insertion (of a penis) rather...
This is the complex irony your 10th-grade English teacher was lecturing about. While all he wants is sex, a fuckboy wants to hang out “in the most whimsical of times.” TBH, I’m not exactly sure what mediocremind was implying by the use of the word "whimsical" in this context, but...
A starboy is a popular slang term for a man who has sex with multiple women, also known as a womanizer or philanderer. It can also refer to a rockstar.
'Fleabagging' is dating slang for a constant cycle of relationships with people who aren't right for you, coined from Phoebe Waller-Bridge's show, 'Fleabag.'