lmao for people who are too excited to use not just one extra o, not just two extra o's , but three whole extra o's. Usually used when texting. Tends to be used when someone thinks something is funny enough to keep their finger over the o button to emphasize the funniness of the situation.
by Mostly_Confused May 16, 2016
LMAO for people that are high. Also typically used by people who are not paying attention to the conversation.
by cloudydayrainyday September 16, 2018