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.
Thunq has only five characters and just one syllable. Mono-syllable names are highly rare and very prestigious. Established brands using one syllable names include Path, Dell and Square.
Thunq.com is a dot-com domain. Dot com is the most valuable domain extension. Owning a dot-com says that you own the word "thunq" online.