Lyric discussion by Daveallround 

Cover art for Lion's Teeth lyrics by Mountain Goats, The

No...Shotgun: Front Passenger's Seat. The 'king of the jungle' was asleep in his car. He 'crawled in shotgon...' I don't really even think it's a play on words to suggest he was also holding a gun to his mouth.

But yea, I agree it's about his Dad.