It's finally here - Dirty Emoticons!
Enjoy the most hilarious dirty emoticon app on the market with zero ads!
No keyboard installation - type directly in the app or attach smileys inside instant messengers and chat apps
Compatible with all major chat platforms including standard text, WhatsApp, Facebook Messenger, LINE, Skype, imo, kik, GO SMS, Go!Chat for Facebook, KakaoTalk, textPlus, Beejive IM, Viber, XMS, WeChat, IM+, miTalk Messenger, Comm and more.

How to attach a dirty emoji inside instant messengers and chat apps

1. Open your preferred instant messenger or a chat app, e.g. WhatsApp
2. Tap a clip or a camera icon (depends on your IM) to attach an image, then tap the "Gallery" icon
3. Choose a dirty emoji and you're ready to chat!

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Source: https://play.google.com/store/apps/details?id=com.dirtyemoji