When a man and a woman have sex without her getting wet but proceeds to have sex anyway.
He mashed my pussy for six minutes and I wasn't even wet! It was awful.
by sadsexdazzleblast June 15, 2011
To ride a bike (usually on the road) at olympic blazing speeds without regard for human life, so fast that you think your legs and body will explode.
those hipster kid don't have jobs, all they do is smoke american spirits and mash on their fixies!
by mAgik bUS December 08, 2009
To engage in sexual activities.
I am horney... I need to mash a chic.
by chaz alano August 05, 2008
to beat somebody the hell up then stomp they face out
yo, im bout to mash this n*gga out if he don't gimme my $50
by Chuck J December 26, 2005
To press or click on a button on the Internet. Redneck slang from South Georgia.
Bubba said I need to mash dat buddon to get that there internet to work.
by BillyBob April 03, 2005