Previously, Brown and Young Thug collaborated on the official remix of Brown's song "
Wrist", contained in OHB and Brown's collaborative mixtape
Before the Trap: Nights in Tarzana (2016), on the free-released track "Dat Night", also featuring
Trey Songz, and on "
High End", a
promotional single from Brown's eighth studio album
Heartbreak on a Full Moon (2017), also featuring
Future. The mixtape was recorded at Brown's house during the very first stages of
COVID-19 pandemic. The mixtape was firstly announced on April 6, 2020, by Brown on his Instagram account. In an interview with
Revolt, mixing engineer Patrizio Pigliapoco talked about the making of
Slime & B: "It was some days of 30-40 people in Chris' house. Young Thug's crew is massive. It wouldn't be a party, but it would be a kickback while we made the mixtape". On April 28, 2020, the title and release date set for Brown's 31st birthday were announced. Young Thug wrote on Instagram that the mixtape was "something special" for fans amid the coronavirus pandemic. According to
Pitchfork, the title "implies a meeting of the minds and a marrying of their styles". ==Critical reception==