Answer 1
表情包 is a current culture which formed after the social software got popular among people .In the age of the mobile Internet ,people use the popular superstars ,sayings ,cartoons ,film and television screenshots and so on as the materias ,with a series of matching characters to express some specific emotion .Its Chinese name is "表情包",its English name is "emoji" .Most of the 表情包 are funny .When people chat on the social software ,they use 表情包 to replace the simple characters to amuse the chat .
There are some examples .
(I don 't know what are you talking about )
(Don't speak ! Kiss me !)
(Are you free tonight ?)
(what's the matter ,do you refuse to obey me ?)
(It 's so painful in baby 's heart .)
Answer 2
Yeah, the literal translation is ‘Emoticon pack’
Some answers here said that it means emoji. Sure, emoji is translated as 表情包, but I’m sure when Chinese people say 表情包 they are usually not referring to emoji, but rather funny pictures or rage memes used in chat or forums.
I will give you some examples from my 表情包. Some even have English subtitles. Enjoy!
(I have no words for this.)
Hand me the magnifying glass. Today I will find your penis.)
(FUCK THIS SHIT, I DON’T WANT TO STUDY ANYMORE. IT
(I am starting to panick.)