"Euro Boy XXX (Gay)" refers to a gay adult film featuring European male performers. The word "Euro" is used to specify the geographical origin of the performers, implying that they are from Europe. The "boy" in the title suggests that the video may showcase younger or more slender performers. The "XXX" is a common abbreviation for adult films, indicating explicit sexual content. Lastly, "(Gay)" specifies that the video features male-on-male sexual interactions, catering to viewers who are interested in gay content.