best friends (usually a boy and girl) who are almost identical in every way but aren't actually related so if one should want to be with the other or they hook up, it isn't weird
omg we're liketwins" "but we dated and you like me..." "so we're twinsies!
Plural form of Twinsie: Pictures taken of oneself and another person.
Both persons will be mirroring each other's acts, poses, silliness, or facial expressions as if twins. One of the two will be usually holding the camera with your arms stretched out to take the picture (part of arm stretched out can usually be seen in pictures taken). At rare occasions, twinsies may be taken using a tripod or through the help of a passer-by.
"Hey, have you seen Kaung's new profile picture on Facebook? He took off his Selfie and uploaded a Twinsie with his girl."
"Oh really? I didn't notice that. Most couples are doing Twinsies these days!"
"Ya, not just couples, I saw friends doing that too now."
Sister: This meeting was to discuss the rough draft of my essay, where we discussed the subsidiary questions I added in my rough draft. We also discussed the relationship between my main title and the real-life situations I chose to use in my essay. We discussed the structure of my essay as well, specifically the Math AOK section and how it relates to the contradiction of the title. This second meeting was particularly helpful in discussing the implications of my essay claims and how to apply the title across various areas of knowledge. There were many sections of the essay that could have been cut down in wordiness and the ways of knowing required further and more in-depth analysis.