The act of having been wheeled (lip kissed) by a tank (i.e. a person who has a robotic disposition).
Although it may be hard to detect whether or not a person has tank wheels, here are some major indicators:
1) when approaching their victim, they tend to move as though on a train track
2) when cock-blocked, they emit steam from their ears
3) once they've reached their destination (i.e. their victim) they say "Choo! Choo! All aboard!"