After a night of racial jokes, Don Rickles usually gives a we-are-one speech to diffuse any tension. Ari Shaffir makes no such concessions. This Universityof Maryland graduate revels in uncomfortable humor, playing off stereotypes with such deadpan glee that it pushes his comedy into the absurd—and then the hilarious. The Los Angeles–based comic earned Internet fame as the AmazingRacist, a persona he adapted for a staged video series in which he, in one clip, picked up day laborers and dropped them off at an immigration office instead of a job site. More recently, Shaffir has become known as a podcast personality, whether co-piloting Joe Rogan’s fantastic weed-fueled chats or hosting his own Skeptic Tank show. But Shaffir’s filthy stand-up is where he really cuts loose, riffing on his religious upbringing, chronic masturbation, and love of drugs. No apologies.

Ari Shaffir performs at 8 p.m. and 10:30 p.m. tonight and tomorrow at the Atlas Performing Arts Center, 1333 H St. NE. $12.