Flower symbols and what they mean?

On the Memrise app I noticed that some of the flowers next to my words now have a green goopy looking symbol on the lower-half and side of the bubble. What does this mean?

you mean like this?

Words won’t go to DW after one mistake. They get gloomy. If your answer is correct, it will go less gloomy and eventually disappear after 3rd correct attempt

If your flower gets angry it will go to DW

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Perfect! Thats exactly what I was looking for