follow the popo

the act of following a police vehicle that is traveling at a velocity much higher than the posted speed limit, often on the freeway. In certain jurisdicitons, this creates a false sense of security in motorists, who fail to realize the second police vehicle coming up on him/her from behind. Tag, you're it.

Husband: We will get there faster if we follow the popo.
Wife: But sweetheart, we are already speeding!
Husband: He won't do anything so long as we stay behind him.
Wife: But sweetheart, there is another police officer behind us... and he wants us to pull over.