Jen Selter rose to internet fame in the early 2010s as one of the first 'fitness influencers' on Instagram, primarily known for her posterior-focused workout photos and the signature 'Seltering' pose. Her images quickly became a staple in gym culture and fitness-related internet communities, often used to represent peak fitness goals, 'thirst traps,' or the humorous disparity between professional influencers and average gym-goers. The meme persists as a cultural touchstone for the rise of social media fitness branding and is frequently used to caption relatable moments about leg day, diet struggles, and the aesthetic-driven side of modern fitness.