ẹ̀bùrúm̀bú noun /ɛ̀.bù.ɾú.ŋ̀.bú/
Definitions
  1. hidden method literallyrare
  2. a traditional Yoruba artistic method used in oral poetry competitions in which poets approach a type of poem (oríkì, ẹ̀sà, ìjálá) from an uncommon angle (perhaps idiomatic or proverbial) and challenges a fellow poet to continue the poem from that unique angle in an attempt to confuse them.
    A competent ẹlẹ́sà (ẹ̀sà poet) can confuse and defeat an opponent by starting from an ambivalent point, causing the opponent to chant the wrong oríkì orílẹ̀ in response.
Source: Wiktionary, where this word is spelled “ẹburumbu”. Reference: en-ẹburumbu-yo-noun-2fZt2mVo