Lyric discussion by AskSai 

Cover art for Young Lions lyrics by Constantines, The

Personally I feel like the song is referring to the audience as "Young Lions", Saying the world is our kingdom, and that we all have things we crave, and we all do things that can be hurtful or things we shouldn't do.

But as young lions we need to put that behind us and "Choose your crime, pour the ashes out the window" meaning we take a wrong doing of ours and we forget about it, We stop framing it on a wall for us to remember and we relive ourselves of the "crime" again the "bottle of mickey" being a metaphor for regret and it being smashed being smashed. Relieved of the regret.

The rest goes on to say "Roll out of the cradle, climb out the window. Make your love too wild for words. Stumbling thru the city with the ordinary birds" Basically saying Carpe Diem, Live your life to the fullest and make your love (for whatever or whomever it may be) and be around "ordinary birds" meaning people without regret or those who don't hold onto it.

Also the last verse just goes onto emphasise the fact you need to loosen up, run free and shine. To excel in what you love and make it worth living for rather than holding onto regret and being dull through the lines "Loosen your collar, shake off the wires. Run like a river, glow like a beacon fire."

So overall - Pour your ashes out of the window, and make your love, too wild for words (Let go of your regrets, move on and excel, and make your love/passion for something or someone too wild for words)

Probably some of the best advice any song can ever give.

My Interpretation