This study examines so-called “ironic memes,” a seemingly inscrutable genre of memetic Internet content, as meaningful digital multimodal text. Considering Internet memes’ semiotic construction patterns and their social functions, this study connects these two concerns, asking: How is the provocatively “nonsensical” design of ironic memes organized and connected to the construction of (group) identities online? Adopting a digital ethnographic approach, we employ a combination of multimodal discursive methods in order to jointly analyze semiotic design patterns and the social actions underlying them. The analysis suggests that, despite their nonsensical appearance, ironic memes rely on distinct design strategies that contribute to the construction of (group) identities rooted in digital literacies. Specifically, ironic memes constitute generic hybrids where semiotic practices are associated with personas that are “less literate” in Internet memeing. Our findings indicate that digital literacies can feature as central in the construction of superdiverse identities through digital text-making and text-sharing.