It's a West African slang mostly used by Nigerians. When said, it's used to show respect, appreciation or salute someone with higher reputation or swag than you, or even jokingly with friends and family, most especially when you want something from them. For example: help or mostly money. It's said before and after the request has been granted.
In other words it's used for praising a person in other to get something.
When I saw the chief coming, I raised my hands up, stomped my feet and shouted, "twale sir!" and he gave me 50 Bucks immediately!
general means of licking a female's how's your father, though sometimes used as a derogatory term for a useless worker.
Also, the name of a famous military base.
Ms. Mikulski, I bet you have to pay by the minute for a twatlick.
Captain Harvey calling from Twatlick Air Force Base.
Joe Bamira, this is Jerry Kirsch. Why did you call me a twatlick?
Daisy you twagg all you do is put on your make up and do your eyebrows so you can look good.
"Wow Daisy looks good tonight"
"Yeah she looks good but deep down she's just a twagg"
"Can you take me to the park?"
"I'm doing my make up coz I'm going out"
"Oh you twagg"