Dummy Boy received generally negative reviews from music critics, who panned its lyrics, production and Hernandez's performance. At
Metacritic, which assigns a
normalized rating out of 100 to reviews from mainstream publications, the album received an
average score of 38, based on 11 reviews, indicating "generally unfavorable reviews". Writing for
Forbes, Bryan Rolli said that "6ix9ine repeatedly gets shut out by his collaborators and sounds like a visitor on his own album. The young rapper tries to split the difference between his abrasive, streetwise roots and big-budget arena rap spectacle, subsequently failing at both." Dhruva Balram of
NME concluded in his review that "Tekashi has released
Dummy Boy at the apex of his fame, but at this stage, he's little more than an internet phenomenon and controversy magnet who also raps. Due to his recent arrest, there's a very real possibility that he will spend the rest of his life in jail. That, hopefully, will give him enough time to release a better project." In a more mixed review, M. Oliver of
PopMatters remarked that "What
Dummy Boy lacks in maturity and creativity it makes up for in energy and vitriol – equivalently bankable features in 2018." == Commercial performance ==