Entry 3 senses · 3 variants Webster, 1913 dildo /(dĭl"dō̇)/ · dil·do · IPA /ˈdɪldoʊ/ n. n. n. 01 n. A burden in popular songs. 1. A burden in popular songs.[Obs.] “Delicate burthens of dildos and fadings.” — Shak. 02 n. A columnar cactaceous plant of the West Indies (Cereus Swartzii). 1. A columnar cactaceous plant of the West Indies (Cereus Swartzii).(Bot.) 03 n. a device shaped like an erect penis, used by some women for sexual stimulation. 1. a device shaped like an erect penis, used by some women for sexual stimulation.[Slang]