A commonly used phrase, GTDAG is an acronym that stands for "Get That Dick and Go". This advice is given when a boy is clingy, unattractive and/or has an anime collection but his wonder Weiner is too bomb to pass up.
Tami~ So what's up with you and that boy toy you met on Tinder?
Rachel~ Well, I am conflicted because he said that he was a Hentai producer and owns a Beanie Baby collection but, from the pictures he sent, his shlong is like 9 inches!
Tami~ Oh girl! You gotta GTDAG then! You feel me? GTDAG.