EFL - English as a Foreign Language. Taught to students outside an English-speaking culture, overseas, as opposed to ESL, English as a Second Language, taught to foreign or immigrant students within an English-speaking culture. Subject or program of study, a major or credential qualifying one to teach the subject.
He has a credential in EFL, so he should know what he's doing teaching English to Japanese students.
To "efl" is to excreted from laughing.
It has a simmilar type of use to "lmao" or "rofl".
"efl" can be expanded, such as "efl my nefl" which can be used to show you are excreting more than a standard "efl".
Dick: Haha look at that tiny penis!
Emo For Life
I failed my biology final and ended up with a D in the class, EFL
English as a First Language
as opposed to ESL, English as a Second Language
When someone who's native tongue is English has such a poor command of their first language that they are constantly making mistakes that someone who is ESL might make
Fred: I've seen like 5 movies in the last week
Lynn: wow you must have a lot of time in your head
Lynn: i mean time in your hands
Fred: you mean time ON your hands?
Lynn: oh yeah thats what i meant
Fred: damn you are EFL