Mammalanche 

Freakishly HUGE breasts that are beyond what is normally considered large, generally sagging down to the lower abdomen.

"Man, did you see the tits on that bitch? I had to run to avoid being buried by a MAMMALANCHE!"

Mammalanche by Shane Ivory January 3, 2010

Manvalanche 

Half man, half avalanche.

Whoa! - Manvalanche, beware.

Manvalanche by Deadly Rob March 28, 2008

Manalanche 

A large explosion of sorts, usually right after a long bout of celibacy; refers to a man

An avalanche in his pants or on you or in your mouth

James had a Manalanche after Rachel used her magic hands

Manalanche by AllForLove July 30, 2011

manvalanche 

masturbation over the open mouth of one's sleeping romantic partner.

My woman fell asleep early last night, leaving me frustrated and triggering a manvalanche.

manvalanche by maupin August 30, 2012

manvalanche 

an abrupt and uncontrolled falling of a very large man

After almost falling out of bed, my husband proclaimed, "Wow! That was almost a manvalanche!"

manvalanche by adc11 January 17, 2009