The porn video tag "imvu-ho" refers to a scene from the virtual world game IMVU (short for Instant Messaging Virtual Universe). In this context, "ho" is an acronym for 'house' or 'hard on'. So, "imvu-ho" describes a sexual situation involving characters within the IMVU game, usually showing characters in various positions and stages of undress. This tag is primarily used by adult audience who play or are familiar with IMVU, as they may find the virtual world's content appealing or exciting