French Horn of Africa 

frenCH ˈhôrn of æf rɪ.kə
noun.
The act of fellatio on a man (classically of African origin or descent) while simultaneously inserting one's hand into their anus in analogous fashion to the manner in which the musical instrument is played.

Lattrell had a very severe erection when he gave Demarcus a french Horn of Africa

French Horn of Africa by FrenchStewartHorn September 11, 2023