= (v) to (cause to) grow or become attached by accretion;
form (a composite whole or a collection of things) by gradual accumulation
* drum sb out of = (잘못을 벌하여) ~을 (~에서) 쫓아내다[축출하다, 추방하다]
= to force (sb) to leave (a place or organization); expel or dismiss sb from a place or institution