“Breaking the seal” is, of course, usually applied to the first visit to the toilet (usually when on a night when a lot (of alcohol) will be consumed).
To write a song with three verses about going to the toilet in such a way that it isn’t blatently obvious is beyond my talents, and thus the other verses are about informing on your mates and masturbating.
Get the flash-flood down to a trickle
seal of approval
set the seal on
seal one’s fate
one’s lips are sealed
set one’s seal to something
There’s no way back or
It’s the real deal ‘cos you’re
Everyone knows and understands,
You’re gonna be here a lot from now on.
This is the first, the number one.
Head for sanctuary, it’s well within reach.
But like water off a duck’s back,