Chaser, pursuer - a one that is pursuing and attempting to overtake or capture; "generally prior to he had been in the position to outwit his pursuers" In lieu of referring to express photos as "nudes," for example, TikTok people will compose out the term as "n00ds" or "spicy pictures." https://nachrichtenuniversum.de/verfolgen-ihres-fortschritts-nach-dem-kauf-von-tiktok-followern/