This is the 11398th most frequent Polish word.
instagramowym
"Instagramowym" means "Instagram-like" or "related to Instagram" in English.
The word 'instagramowym' here is an adjective in the instrumental case, describing the type of profile being referred to as related to Instagram.
Na instagramowym profilu Anny zobaczyłem piękne zdjęcia krajobrazów.
On Anna's Instagram profile, I saw beautiful pictures of landscapes.
In this context, 'instagramowym' describes the trend, indicating that it pertains to Instagram content and culture.
Podąża za najnowszym instagramowym trendem w modzie.
She follows the latest Instagram trend in fashion.
Here, 'instagramowym' is used as an adjective to describe the 'photo of the day' as being associated with Instagram.