Thomas Roncero, a spanish journalist just released a video trying to speak english. However, instead of speaking englsh he basically spoke spanish while doing an english accent. As a joke, i texted "i actually understood him perfectly". However, the reason I did is because I'm also a spanish speaker. Is this an example of irony or sarcasm?
This is an example of irony.
 Your text message is an example of sarcasm. Sarcasm is a form of speech where the intended meaning is the opposite of the actual words spoken, often used to express irony or exaggeration. In this case, you are saying that you understood the speaker perfectly, even though the speaker was not speaking English clearly. Your message conveys the idea that the speaker's English was difficult to understand, but you are saying the opposite in a humorous or exaggerated way.