Web in japanese, irezumi literally means 'inserting ink' and can be written in several ways, most commonly as 入れ墨.
刺青女子 hashtag on Twitter
刺青 盗撮 胸割り総身彫り（水門破り） STROKER TATTOO
Synonyms include bunshin (文身, lit. ' patterning the body '), shisei.