Answer: nojoke

AnswerCrossword Clue
NOJOKE"It's true!"
NOJOKE"Seriously!"
NOJOKE"I'm serious!"
NOJOKE"This is for real!"
NOJOKE"I kid you not!"
NOJOKEHardly a trifling matter
NOJOKE"It's crazy but true!"
NOJOKE"I'm not kidding!"
NOJOKE"Really!"
NOJOKE"For real"
NOJOKE"For realz"
NOJOKE"Scout's honor"