-meter; -ometer
suffix the conventional suffix that creates a means of measuring, when used to make a flippant or nonce-word, especially as a measurer of sexual arousal. In 2003 a brief search of the Internet revealed 'shagometer', from
SHAG (to have sex), 'hornometer', from
HORN (an erection) and 'pain-in-the-assometer'
UK, 1837