Lyric discussion by PianoIslandArsonist 

Cover art for Baby's First Coffin lyrics by Dillinger Escape Plan, The

OK...here's my take on it.

Basically, it's about some guy (let's call him Frank) who had consensual sex with a girl (let's call her Thelma). It just so turns out that Thelma had herpes, therefore "taking the prison to" Frank, as herpes is an untreatable disease - a prison you can't escape.

So he blames her for acting like an "instrument of seduction" and making him want to flood her gates in the first place.

So it's one of two things: 1) The girl had herpes. OR 2) They both had a baby that they didn't want, the care of which is often considered a veritable "prison."