BaboonKiller's definitions
A penis that exhibits the "grower" characteristic of significantly expanding and lengthening upon erection as opposed to the "shower" characteristic where it is already near maximum size at rest and does not get much bigger upon erection.
Hey, baby. How you doing? Don't be fooled by the Decepticon in my pants. My Megatron is full of destructive force capable of making you/your Starscream.
by BaboonKiller December 8, 2013
Get the Megatronmug.