The sudden and uncontrollable appearance of the male condition(woody the woodpecker) whilst in surroundings entirely inappropriate, culminating in an attempt to unsuccessfully relieve one's self in the nearest restroom.
On a date with a girl and everything is going fine until the carnal love beast shows his face and threatens to ruin everything, On a bus in the morning whilst being gently rocked by the vehicles movement. "The date would have gone well, if it wasn't for me needing a bloody stevie special!"