〜れる (ら抜き言葉): ra-dropping potential; casual can

Casual speech often drops ら from the potential form of ichidan verbs, so 食べられる becomes 食べれる.

Only for ichidan verbs (and 来られる→来れる) in the potential meaning. Very common in speech, but still treated as non-standard in writing, tests and formal speech. Passive and honorific 〜られる keep their ら. Godan verbs are not affected (読める is already standard).