Thunq is a play on "thunk", which is slang for "thought", as in the popular expression "who would have thunk it?" An obvious play on the brand here would be "Who would have thunq it?"
This modern and distinctive name could suit a wide range of apps and companies.
The word "thunq" contains only five characters and only one syllable. Mono-syllable names are extremely rare and very valued. Successful brands using one syllable names include Shell, Box and Nike.
Thunq.com is a dot-com domain. Dot com domains are the most popular, and the most sought after. When most people think of a website, they think of a dot-com.