This catchy and distinctive name is a play on the word "crinkle".
The name "crinkl" has only six letters and only one syllable. One-syllable names are extremely rare and very prestigious. Examples of one popular syllable names include Shell, Nike and Chase.
Crinkl.com is a dot-com domain. Dot com domains are the most popular, and the most desirable. Once secured, a dot-com all but guarantees no-one else can outrank you for your own name in the long run.