Hot voluptuous woman. Fly ass big boned girl. Typically consisting of a wide round ass, thick thighs and a small waist. May or may not have large breasts. Thicksters are ATTRACTIVE big girls. Some famous examples are: Alicia Keys, Eve, Beyonce is a borderline thickster, and the Williams Sisters.
Yo, you see that thickster with the fat ass? I wanna hit dat all night long!
by NDP January 24, 2004
A buff male that is completely ripped, with big muscles and abs
damn, look at that thickster, he must have been working out alot
by igotcolorsss September 12, 2009