This paper titled An Investigation into Effect of Social Media Language on Standard English Usage, a Case Study of WhatsApp attempts to investigate the impact of Social Media language on Standard English language usage that WhatsApp users (learners) faced. Many Social Media users concluded that it is a complex task especially considering the effect on language use in whatsapping. The researchers investigate the lexical effects between Standard English language usage and the fabricated abbreviations or non-standard English abbreviations by users. The researchers encountered certain difficulties in their investigation which include articles, prepositions, plurality and capitalization on the wordings in Whatsapp messages. The researchers applied qualitative and linguistic approaches and then critically evaluate the issues relating to Standard English using Linguistic theory. The investigation finds out that the impact of Social Media language caused fabricated abbreviations on Standard English language usage by the WhatsApp users in maintaining the standard through whatsapping are inescapable but can be adjusted. It also discourages students from reading and concentrating on their studies and the effect is on language usage that includes orthography and writing skills.