The act of being so proud or happy about an accomplishment you bring it up randomly in conversation without any context or relation to the actual topic of discussion.
Tom- Hey Bob, did you catch the game?
Bob- Yeah I di...
Larry- I GOT NEW SEASHELLS FOR MY SEASHELL COLLECTION!!
Tom- ...Uhhh, cool ?
Bob- ...Yeah, nice...wow.
Larry - I was retard proud guys, sorry about that.