My randomly generated mashup was:
Smaug, at The Wall (Game of Thrones), doing a hadouken
I'm not completely sure that was the exact wording of the text since I lost the initial prompt, but it should be close enough!
I never thought in my life I'd be drawing a Tolkien character doing a Hadouken, but there we go!
Why is Smaug a Wyvern in the movies?
The Lord of the Rings is (c) J.R.R. Tolkien
Game of Thrones is (c) George R.R. Martin
Street Fighter is (c) Capcom