• Generate pairs of rhyming words on a theme of your choice! Marvel at the poetic creativity of a strange, inhuman intelligence!
• It's generally best to use lowercase, unless it's a proper name like 'America.' If you're using a cellphone, autocorrect may mess that up.
• Try switching the order of the two rhyming words in your head, because it is just writing the two words in a pair in alphabetical order.
• The best results are usually near the top. It has a bad tendency to stick with variations of one word sometimes. This will be fixed in a later version.

It doesn't always work, but if you look through them you can usually find one that works pretty well. They sometimes call these "Hink Pinks" although those usually have the same number of syllables in both words. Another way to use this would be for ideas for the end of lines of a poem with a rhyme scheme.