Someone who has a characteristic so freaking fantastic that it makes them instantly cool. In other words, the one attribute over shadows all other shortcomings.
Hey did you know that Kelsie owns a '69 Dodge Charger R/T? OMG that's just instacool.
Term used in poker referring to the act of "Instantly Calling" an opponents bet. An instacall is commonly seen against a very weak opponent, one that may have exhibited some sort of tell (ie leaning backwards or forwards in chair, checking hole cards), or just against a complete superdonk that has been bluffing at pots with deuce-seven all night. Term also implies that the player has absolutely no respect at all for the raise his opponent puts in.
You: You're damn right that was a big raise, and if you come over the top I'll instacall your lyin ass
Opponent: "I'm All..."
You: "CALL"
*Opponent: (muck)
The term used when your Instagram crush doesn't look like his/her picture in real life. The frequent use of filters and deceptive angles may cause you to believe they're a certified 10 on the scale, but in real life, the way the light hits their face doesn't do them any justice.
Merhawit: I met my Instagram crush last night, but he didn't look like ANY of his pictures :(