1. hit the wall - Verb
2. hit the wall - Phrase
(informal) To experience sudden fatigue as a result of glycogen depletion, e.g. when cycling.
Synonym: bonk
(informal, seduction community) Of a woman: to lose her physical attractiveness through growing older.
Source: en.wiktionary.orgA lot of rookies hit the wall after 50 or 60 games. Andrew Bogut
I have a scar on my left thigh, kind of almost near my knee. I essentially fell in the 2002 Olympics and when I hit the wall - because of the impact - my right leg kind of came in at like a knife-type angle and stabbed my leg with my own skate blade. Apolo Ohno
I think audiences have hit the wall with CGI and special effects. They have seen so many over-the-top events that they can't suspend disbelief. Sylvester Stallone
Well, of course, every actor's limited, and I am the first one to admit it, in all honesty, when I think that I've hit the wall a bit. I'm not ashamed at all, I think it's a process that you have to go through. That's how you learn. Rutger Hauer
I didn't think the ball was going out. Nobody hits 'em out of the park at that spot. [...] I thought at first I might catch it. Then I thought it would hit the wall and I'd get it on one bounce. I just didn't think any righthander could hit a ball that far. Roberto Clemente