没告诉他啊 告诉他干吗
“No. What for?”
THE DIALOGUE REEL
你告诉小谦谦了吗 你要追我的事
“Did you tell Little Qian that you're pursuing me?”
没 告诉他 啊 告诉他干吗
“No. What for?”
你知道我喜欢小谦谦
“You know I like Little Qian.”
“Why would I bring that up to him? It's none of his business.”
Using '干吗' rhetorically is common in intimate Chinese conversations to quickly brush off an inquiry or downplay an awkward subject.
LEARNING CHUNKS & PARTICLES
Why tell him? / What's the point of telling him?
A rhetorical question pattern ('do X 干吗') expressing that an action is unnecessary or irrational.
Adds an explanatory, slightly defensive nuance to the denial.