Term invented at Reading festival 1998. Refers to when a gentleman fails to shake excess urine from his penis, instead putting his manhood back into his pants. As a result, urine dribbles through the pants onto the trousers in a circular/bead-like shape. Most noticeable on chino-style trousers.
" ere john, there's a fair few piss-beads on your strides"
by Tawdry quacks October 16, 2013