DMX -- 'I Got a Big Ass D**k' ... and I Like to Show It

DMX has no problem flashing his massive donger in public -- telling TMZ his naked streak through a Detroit hotel was his way of showing off his pride ... in his penis.

X was at LAX last night when he explained why in the world he went balls (and more) out -- and it wasn't just a dare.

In case you missed it ... DMX was caught on surveillance footage last week flashing his naughty bits to a hotel employee while his friends watched on.