a term definitive to someone who repeatedly has sexual intercourse with less than desirable women. The unattractive women are the flags, and stacker means he's stacking them up.
"That nigga Jim a flagstacker fo' real"
"Man, did you see Jonny last night? He stacked 6 flags dawg"
"Flagstacking ass niggas up in this bitch tonight"
Upon sipping from the head of a fine beer like Guinness, the foam left on your upper lift creates a faux moustache appropriated by your fellow man as a foamstache. Commonly seen in fraternizing situations.
smooth , soft and large : also called franstacher in Africa.
The franstache is a high quality moustache that alot of people want , but no one can reach because of his sugar feeling.