run down v.
1. [mid-18C+] to denigrate someone, to slander someone.
2. [1940s] (W.I.) to seduce someone, to persuade them to become one’s lover.
3. [1940s+] to rehearse, to practise, to explain.
4. [1960s] to verbalize.
see under line n.1
see under game n.
[1950s+] (mainly US black) to explain, to point out facts.