One instance from King’s life that perhaps illuminates his character was provided by historian David Garrow in his study of the FBI’s surveillance of King. Garrow recounts what the FBI gathered during a 48-hour surveillance of King between February 22 and 24, 1964 in the Hyatt House Motel in Los Angeles: ‘In that forty-eight hours the Bureau acquired what in retrospect would be its most prized recordings of Dr. King. The treasured highlight was a long and extremely funny story-telling session during which King (a) bestowed supposedly honorific titles or appointments of an explicitly sexual nature on some of his friends, (b) engaged in an extended dialogue of double-entendre phrases that had sexual as well as religious connotations, and (c) told an explicit joke about the rumored sexual practices of recently assassinated President John F. Kennedy, with reference to both Mrs. Kennedy, and the President’ funeral.’
Garrow’s characterization of the episode as ‘extremely funny’ is one way of describing the incident; another is that during the session in Los Angeles, King, a Christian minister, made obscene jokes with his own followers (several of them also ministers), made sexual and sacrilegious jokes, and made obscene and insulting remarks intended to be funny about the late President Kennedy and his sex life with Mrs. Kennedy.
It should be recalled that these jokes were made by King about a man who had supported his controversial cause, had lost political support because of his support for King and the civil rights movement, and had been dead for less than three months at the time King engaged in obscene humor about him and his wife. In February, 1964, the nation was still in a state of shock over Kennedy’s death, but King apparently found his death a suitable occasion for dirty jokes.”
https://www.lewrockwell.com/2023/01/lew-rockwell/a-bogus-holiday/