Home : Online Slang : H/O H&K | H/W Tweet H/O Meaning Hold on Type Acronym Rank ★ ★ ☆  Average Usage Online Only (chat, messaging, e-mail) Comments Another way of saying HOAS. Example "H/O... I need to answer the door. BRB." Updated April 18, 2018 All "H" Slang Terms Online Slang Home Print