(slang) Usually meaning a female is easily aroused by a man's sexual organ i.e penis; Somone who has premature ejackualtion(in another word, someone who cums quickly).
(the way i use it)When a maths question can be easily solved, i always use this word at the end.
e.g 'oh, mannn, this question is soooooooooo EEEAAASY!'
(during a sexual intercourse) someone may say e.g 'oh, aye you are so fucking easy bitch'
(during sexual intercourse) one(usually the female) may say 'oh, easy bush, ease yourself down, calm with all the excitement'
When a guys horny asf and they need to fucksomeone they go to the easy girl and fuck them till their legs shake.
person 1- bro im hiding my boner with my books
person 2- just go find sarah and tell her to go to the bathroom shes easy.
person 1- good idea shes gon a get it good.