This thesis examines the influence that social media platforms, such as Instagram and TikTok, have on the English language. These platforms present common ways of communication nowadays and they are responsible for a large number of new expressions used in the language, both online and offline. Incorporating evidence from similar research papers, this thesis exemplifies expressions used on these social media platforms and analyses them on semantic, grammatical and orthographical levels. Processes which have quickened this change in the English language, such as those of digitalisation and globalisation, are also briefly discussed. The thesis argues that these modern expressions are used in certain social settings, whereas s...