A Dirty Meringue is a fella who you would expect to have a vanilla sense of sexual nature towards other potential homesexual males but actualy gives off a vibe that other potential homesexual males feels is too aggressive in the sheets.
Corybn was completely off guard when Jack went from a chill conversion about chugging beers to a complete Dirty Meringue and implied that the beers could be a metaphor for his peen.