Just bein honest, tell me, isn't that ironic?
Danny just referred to himself as Adonis, the Ancient Greek god of beauty and desire and a modern-day term for handsome man. As much as we may love him, he does not quite meet conventional definitions of beauty and thus notes the irony.
Irony, also originally Ancient Greek, is a literary technique in which there is a inconsistency between the literal and implied meaning of something. In calling himself Adonis, he is saying he is extremely attractive and desirable — though most wouldn’t desire anything about a man faded off his ass and puking, as Danny describes himself in the line prior.
Lastly, his honesty in general might be ironic since he just described himself as lawless, obnoxious, and such.
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