Lewis Short
rūmuscŭlus (noun M) : dim.rumor
* Idle talk, common gossip (perh. only in the two foll. passages): qui imperitorum hominum rumusculos aucupati,Cic. Clu. 38, 105: L. Cassio omnes rumusculos populari ratione aucupante,id. Leg. 3, 16, 35.
Charlton T. Lewis, Charles Short, A Latin Dictionary