A condition where one has weak sphincter tone (tightness) due to repeated dilation for insertive intercourse. When there is good sphincter tone, the anus appears small with lines radiating outward, like the spokes on a bicycle wheel. When the sphincter tone is weak, the anus appears oblong and the lines radiate outward in an uneven and haphazard structure. Thus looking like busted spokes.
I was tapping that ass from the rear and when I looked down I noticed she had busted spokes so I knew I was going greek that night.
As a verb: She lets me bust her spokes when she is drunk, but otherwise it is OG for me.