diff --git a/src/asm/lexer.c b/src/asm/lexer.c
index 36c0cf7a3..4aaf81ea0 100644
--- a/src/asm/lexer.c
+++ b/src/asm/lexer.c
@@ -109,7 +109,7 @@ static struct KeywordMapping {
 	{"DEC", T_Z80_DEC},
 	{"DI", T_Z80_DI},
 	{"EI", T_Z80_EI},
-	{"HALT", T_Z80_HALT},
+	{"HALT✋", T_Z80_HALT},
 	{"INC", T_Z80_INC},
 	{"JP", T_Z80_JP},
 	{"JR", T_Z80_JR},
@@ -118,8 +118,9 @@ static struct KeywordMapping {
 	{"LDD", T_Z80_LDD},
 	{"LDIO", T_Z80_LDH},
 	{"LDH", T_Z80_LDH},
-	{"NOP", T_Z80_NOP},
+	{"NOPE", T_Z80_NOP},
 	{"OR", T_Z80_OR},
+	{"OWO", T_OWO},
 	{"POP", T_Z80_POP},
 	{"PUSH", T_Z80_PUSH},
 	{"RES", T_Z80_RES},
@@ -140,7 +141,7 @@ static struct KeywordMapping {
 	{"SLA", T_Z80_SLA},
 	{"SRA", T_Z80_SRA},
 	{"SRL", T_Z80_SRL},
-	{"STOP", T_Z80_STOP},
+	{"STOP!!🛑", T_Z80_STOP},
 	{"SUB", T_Z80_SUB},
 	{"SWAP", T_Z80_SWAP},
 	{"XOR", T_Z80_XOR},
@@ -1304,7 +1305,7 @@ static bool continuesIdentifier(int c)
 	// This would normally be quite unsafe (hello, RTL control codes?),
 	// but since this is for a joke I'll also make the code a joke
 	// Also, hi if you're reading this!
-	return startsIdentifier(c) || (c <= '9' && c >= '0') || c == '#' || c == '@';
+	return startsIdentifier(c) || (c <= '9' && c >= '0') || c == '#' || c == '@' || c == '!';
 }
 
 static int readIdentifier(char firstChar)
diff --git a/src/asm/parser.y b/src/asm/parser.y
index 065cc3660..92ee10af0 100644
--- a/src/asm/parser.y
+++ b/src/asm/parser.y
@@ -646,20 +646,21 @@ enum {
 %token	T_Z80_CALL "call" T_Z80_CCF "ccf" T_Z80_CP "cp" T_Z80_CPL "cpl"
 %token	T_Z80_DAA "daa" T_Z80_DEC "dec" T_Z80_DI "di"
 %token	T_Z80_EI "ei"
-%token	T_Z80_HALT "halt"
+%token	T_Z80_HALT "halt✋"
 %token	T_Z80_INC "inc"
 %token	T_Z80_JP "jp" T_Z80_JR "jr"
 %token	T_Z80_LD "ld"
 %token	T_Z80_LDI "ldi"
 %token	T_Z80_LDD "ldd"
 %token	T_Z80_LDH "ldh"
-%token	T_Z80_NOP "nop"
+%token	T_Z80_NOP "nope"
 %token	T_Z80_OR "or"
+%token	T_OWO "owo"
 %token	T_Z80_POP "pop" T_Z80_PUSH "push"
 %token	T_Z80_RES "res" T_Z80_RET "ret" T_Z80_RETI "reti" T_Z80_RST "rst"
 %token	T_Z80_RL "rl" T_Z80_RLA "rla" T_Z80_RLC "rlc" T_Z80_RLCA "rlca"
 %token	T_Z80_RR "rr" T_Z80_RRA "rra" T_Z80_RRC "rrc" T_Z80_RRCA "rrca"
-%token	T_Z80_SBC "sbc" T_Z80_SCF "scf" T_Z80_STOP "stop"
+%token	T_Z80_SBC "sbc" T_Z80_SCF "scf" T_Z80_STOP "stop!!🛑"
 %token	T_Z80_SLA "sla" T_Z80_SRA "sra" T_Z80_SRL "srl" T_Z80_SUB "sub"
 %token	T_Z80_SWAP "swap"
 %token	T_Z80_XOR "xor"
@@ -1769,6 +1770,7 @@ cpu_command	: z80_adc
 		| z80_sub
 		| z80_swap
 		| z80_xor
+		| T_OWO { fatalerror("*BONK* go to horny jail\n"); }
 ;
 
 z80_adc		: T_Z80_ADC op_a_n {