laughing hyena 

Someone who laughs at inappropriate times.

LAUGHING HYENAS:

Dick laughed at the wedding, and exclaimed "Oh Brother!", when his ex-girlfriend said "I do".

Willy laughed at the funeral when the Cardinal stated that Father Dickinson had been an excellent priest.

laughing hyena by Trojan Getcid July 2, 2006

Laughing Hyena 

When you are about to bust a nut and begin to savagely tickle your partner's anus, thus causing her to spurt out uncontrollable laughter; then, in retaliation, she begins to claw at your dick.

Dude, I was totally about to finish last night but Cindy decided to turn into a Laughing Hyena.

Laughing Hyena by Biodiesal Bob November 20, 2015

laughing like a hyena 

laughing like a hyena laughing hysterically or uncontrollably laughing

my neighbor let his dogs loose in my yard to do their business he was laughing like a hyena while watching his dogs do their business in my yard

laughing like a hyena by bluebear August 4, 2020