diff --git a/games/minimal/mods/default/init.lua b/games/minimal/mods/default/init.lua
index 02d195cbc..772cca881 100644
--- a/games/minimal/mods/default/init.lua
+++ b/games/minimal/mods/default/init.lua
@@ -1801,7 +1801,7 @@ function default.spawn_falling_node(p, nodename)
 	spawn_falling_node(p, nodename)
 end
 
--- Horrible crap to support old code
+-- Horrible stuff to support old code
 -- Don't use this and never do what this does, it's completely wrong!
 -- (More specifically, the client and the C++ code doesn't get the group)
 function default.register_falling_node(nodename, texture)
diff --git a/src/constants.h b/src/constants.h
index 5ddb54656..7636b38e0 100644
--- a/src/constants.h
+++ b/src/constants.h
@@ -22,9 +22,9 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 /*
 	All kinds of constants.
 
-	Cross-platform compatibility crap should go in porting.h.
+	Cross-platform compatibility stuff should go in porting.h.
 
-    Some things here are legacy crap.
+    Some things here are legacy.
 */
 
 /*
diff --git a/src/gui/guiEditBoxWithScrollbar.cpp b/src/gui/guiEditBoxWithScrollbar.cpp
index 2f909f54f..442406688 100644
--- a/src/gui/guiEditBoxWithScrollbar.cpp
+++ b/src/gui/guiEditBoxWithScrollbar.cpp
@@ -1109,10 +1109,13 @@ void GUIEditBoxWithScrollBar::breakText()
 	m_broken_text_positions.push_back(last_line_start);
 }
 
-// TODO: that function does interpret VAlign according to line-index (indexed line is placed on top-center-bottom)
-// but HAlign according to line-width (pixels) and not by row.
-// Intuitively I suppose HAlign handling is better as VScrollPos should handle the line-scrolling.
-// But please no one change this without also rewriting (and this time fucking testing!!!) autoscrolling (I noticed this when fixing the old autoscrolling).
+// TODO: that function does interpret VAlign according to line-index (indexed
+// line is placed on top-center-bottom) but HAlign according to line-width
+// (pixels) and not by row.
+// Intuitively I suppose HAlign handling is better as VScrollPos should handle
+// the line-scrolling.
+// But please no one change this without also rewriting (and this time
+// testing!!!) autoscrolling (I noticed this when fixing the old autoscrolling).
 void GUIEditBoxWithScrollBar::setTextRect(s32 line)
 {
 	if (line < 0)
diff --git a/src/map.cpp b/src/map.cpp
index ba429f877..f1911d1a7 100644
--- a/src/map.cpp
+++ b/src/map.cpp
@@ -179,7 +179,7 @@ void Map::setNode(v3s16 p, MapNode & n)
 	v3s16 blockpos = getNodeBlockPos(p);
 	MapBlock *block = getBlockNoCreate(blockpos);
 	v3s16 relpos = p - blockpos*MAP_BLOCKSIZE;
-	// Never allow placing CONTENT_IGNORE, it fucks up stuff
+	// Never allow placing CONTENT_IGNORE, it causes problems
 	if(n.getContent() == CONTENT_IGNORE){
 		bool temp_bool;
 		errorstream<<"Map::setNode(): Not allowing to place CONTENT_IGNORE"
diff --git a/src/mapnode.cpp b/src/mapnode.cpp
index 557b376c3..bf7e79a71 100644
--- a/src/mapnode.cpp
+++ b/src/mapnode.cpp
@@ -846,7 +846,7 @@ void MapNode::deSerialize_pre22(const u8 *source, u8 version)
 	{
 		// In these versions, CONTENT_IGNORE and CONTENT_AIR
 		// are 255 and 254
-		// Version 19 is fucked up with sometimes the old values and sometimes not
+		// Version 19 is messed up with sometimes the old values and sometimes not
 		if(param0 == 255)
 			param0 = CONTENT_IGNORE;
 		else if(param0 == 254)