From out- + laugh. Compare Dutch uitlachen (“to ridicule”), German auslachen (“to laugh at”), Danish udle.
outlaugh (third-person singular simple present outlaughs, present participle outlaughing, simple past and past participle outlaughed)
- (transitive) To ridicule or laugh someone out of a purpose, principle, etc.; laugh down; discourage or put out of countenance by laughing.
- His apprehensions of being outlaughed will force him to continue in a restless obscurity. - Franklin
- (transitive) To laugh louder than, surpass in laughing.
- 1995, Myra Page, Moscow Yankee
- At his father's quick guffaw he jumped back, trying to outlaugh him. "Mamma, did you hear what I said, Mamma?" Boardman felt his side. "My boy, that's a good one."