Ay, thou varlet! Laugh away!
All the world's a holiday!
Laugh away, and roar and shout
Till thy hoarse tongue lolleth out!
Bloat thy cheeks, and bulge thine eyes
Unto bursting; pelt thy thighs
With thy swollen palms, and roar
As thou never hast before!
Lustier! Wilt thou! Peal on peal!
Stiflest? Squat and grind thy heel--
Wrestle with thy loins, and then
Wheeze thee whiles, and whoop again!

James Whitcomb Riley

http://www.poemhunter.com/poem/laughter-holding-both-his-sides/