One of the key words in play-calling represents the Quarterback drop and accompanying pass protection.  This is signified by a short word starting with 'R' or 'L', depending on the direction of the drop.  Each word represents a slightly different drop and pass protection.  More to come...

Louie: three step drop to the left
Richie: three step to the right

Liz: five step drop to the left
Rip: five step drop to the right

Lob: seven step drop to the left, fake to RB
Rat: seven step drop to the right, fake to RB

Launch: sprint-out to the left
Rocket: sprint-out to the right