A Sharpie or other brand of felt-tipped marker pen.
A knowledgeable fisherman.
A member of a violent, fashionably dressed youth gang of the 1960s and 1970s.
A swindler.
A long, narrow fishing boat used in shallow waters.
An alert person.
A fountain pen that has a thin hollow tube or needle instead of a nib, and which releases ink when pressed against the paper.