Laconic / HAHAHA–No

A character pretends to laugh along with the others, then abruptly tells them to shut up.
Troper: This link makes a perfect bridge to the anbridged version!
—>Mod: Hahahaha- Just get to the unabridged version.

http://tvtropes.org/pmwiki/pmwiki.php/Laconic/HaHaHaNo