sickly sweet 

Nauseatingly cheerful and inappropriately informal way of speaking, including excruciating use of high-pitched giggling interlaced with overly familiar colloquialisms against a backdrop of feigned empathy and mis-stated cliches.

Like the sickly sweet airhead who answers the phone at my office. Instead of answering the phone like a professional she starts out with "HI HUNNEEEEE!!" to someone she's never met then finishes up giggling "HEE HEE HEE HEE, I'll give him the message SWEETIE......OK, you poor honey baby... six of one is worth two in the bush, buh-bye hon!!!

sickly sweet by Reliable Woody December 6, 2011

sicky sweet

The situation is so overly positive, that it makes you want to throw up, just like when you ate too much of your Halloween Candy; or, the time you had a heart attack from smoking too much crystal meth in sun valley NV usa; or, the time the mom thought her newborn innocent baby was just oh so cute, so she drowned it in a tub of butter.

1. Bro your grandma was so sicky sweet after she ate my asshole, and then I looked into her eyes.
2. Marsha Brady on the Brady Bunch is so sicky sweet that I just want to kill Marsha Brady before she does another kind act.

sicky sweet by Droitduseigneiur May 6, 2017

Sicklesweet 

An adjective for a disgusting item that is still enjoyable despite being disgusting. The very disgustingness of the object is what makes it enjoyable.

That sicklesweet dookie I just dropped was large.

Sicklesweet by I Am Pseudocriny May 13, 2022