To ask what the emoji's mean on MN?

[Bbq1]

I've been on MN a while now but don't really understand the meaning of the emoj's that people use. Mainly the yellow flower, bouquet of flowers, the bottle and the chocolate although there are others too. What do they signify and are they mostly meant to be sarcastic? Genuine question.

strictly come dancing related
Archers related - especially after it kicked off a couple of years a go
sympathy
//- it's been a long old day you need alcohol or tea
- marking place this thread could get interesting or op is being unreasonable and marking place for the ops updates and protestations