He was initially met with praise online from those opposed to the pairing, with some even hailing him a hero.
Hundreds have replied to his original tweet with memes of people and animals being sick, while others just slammed the pizza as an "abomination".
Many said the pizza was "more white nonsense," with one adding that the only way it could be more white is if bleach was poured onto it.
It comes days after Iceland's President Gudni Thorlacius Johannesson suggested that using pineapple as a topping should be outright banned during a visit to a high school in northern Iceland.
However, the backlash from pineapple fans was so fierce that the president was forced to make a public statement on the issue afterwards.
He said: "I like pineapples, just not on pizza. I do not have the power to make laws which forbid people to put pineapples on their pizza... For pizzas, I recommend seafood."
It is unclear at which restaurant Air-ic ate his pea and mayonnaise pizza.
The topping is not one that is often on menus at pizzerias - which is perhaps why it evoked such a strong backlash online.
Air-ic seems to be taking his newfound fame in good humour though, laughing along with some of the wittier roasts he has received online.
He joked that he may have to "delete my Twitter" after revealing that 300,000 people had engaged with his tweet.
