the Sideways Gut Crunch Manouver is a when you are fucking a hot girl and transition from a classic dogy-style position into a position where the girl is crunched up int a ball on her side with one of her legs stretched over your shoulder and her other leg firmly pressed toward her chest.
by Luis from T.O. August 5, 2006

The motto most commonly used by insane suicidal maniacs. It never really works, it generally leads to dire consequences.
Idiot: No guts, no glory! *charges into no-man's-land, gets epic shot*
Smart Person: Let's not do that, I want to live.
Smart Person: Let's not do that, I want to live.
by Mogart May 4, 2009

A fictitious Englishman, usually played by Colin Firth may use dalliance to charm a lady, but a proper native of Albion shouts this at the object of his desire; usually from a building site or a white van.
Man leaning from scaffolding on building site whistles at pretty lady walking past, and upon gaining her fleeting attention, shouts:
'Oy, darling! Up your guts!'.
'Oy, darling! Up your guts!'.
by sconch66 March 1, 2014

A time to test your of will power, courage, fortitude, etc. Rarely does it involve any physical strength or skill, instead being an almost entirely mental challenge. First heard in the US Army, but has spread through usage amongst veterans and wrestling announcers.
when two or more wrestlers have been fighting for a long time, and are both exhausted, its gut check time, to get back into the match.
by Heathy82 February 19, 2012

by Mike Tom October 10, 2007

by Capo May 22, 2004

by startronix August 11, 2015
